The Department of Geosciences offers a curriculum that leads to the Bachelor of Science in Geosciences designed for students who are broadly planning a career in the geosciences or wish to teach earth science at the secondary level. As geoscientists, the department’s research spans immense temporal and spatial scales that are increasingly reaching across a spectrum of scientific disciplines (physics, chemistry, biology, and mathematics) to find answers to applied and fundamental questions in the Earth Sciences. The department's faculty utilizes a variety of tools in pursuit of these questions, extending from field-oriented projects to laboratory experimentation and numerical methods. The Graduate Program Committee of the Department of Geosciences consists of the graduate program coordinators for geophysics, geology, hydrologic science, and earth science, plus the chair of the Department. The duties of the Graduate Program Committee include development of recommendations for admission of prospective graduate students, decisions on transfer credits and required background courses, decisions on the award of departmental graduate fellowships and assistantships, and appointment of Supervisory Committees for graduate students.

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Submissions from 2024

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A Carbon, Nitrogen, and Multi-Isotope Study of Basalt Glasses Near 14°N on the Mid-Atlantic Ridge. Part A: Degassing Processes, D. V. Bekaert, P. H. Barry, J. Curtice, J. Blusztajn, M. Hudak, A. Seltzer, M. W. Broadley, J. A. Krantz, V. D. Wanless, S. A. Soule, E. Mittelstaedt, and M. D. Kurz

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A Carbon, Nitrogen, and Multi-Isotope Study of Basalt Glasses Near 14°N on the Mid-Atlantic Ridge. Part B: Mantle Source Heterogeneities, D. V. Bekaert, P. H. Barry, J. Curtis, J. Blusztajn, M. Hudak, A. Seltzer, M. W. Broadley, J. A. Krantz, V. D. Wanless, S. A. Soule, E. Mittelstaedt, and M. D. Kurz

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Extending Active Network Length versus Catchment Discharge Relations to Temporarily Dry Outlets, Gianluca Botter, James McNamara, and Nicola Durighetto

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Influence of Subsurface Critical Zone Structure on Hydrological Partitioning in Mountainous Headwater Catchments, Hang Chen, Qifei Niu, James P. McNamara, and Alejandro N. Flores

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Geothermal Play Fairway Analysis, Part 2: GIS Methodology, Jacob DeAngelo, John W. Shervais, Jonathan M. Glen, Dennis Nielson, Sabodh Garg, Patrick F. Dobson, Erika Gasperikova, Eric Sonnenthal, Lee M. Liberty, Drew L. Siler, and James P. Evans

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Applied Soft Classes and Fuzzy Confusion in a Patchwork Semi-Arid Ecosystem: Stitching Together Classification Techniques to Preserve Ecologically-Meaningful Information, Josh Enterkine, T. Trevor Caughlin, Hamid Dashti, and Nancy F. Glenn

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Post-Fire Hydrologic Analysis: A Tale of Two Severities, Kendra Fallon, Shawn J. Wheelock, Mojtaba Sadegh, Jennifer L. Pierce, James P. McNamara, Megan Cattau, and Victor R. Baker

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Chronostratigraphy of Miocene Strata in the Berkeley Hills (California Coast Ranges, USA) and the Arrival of the San Andreas Transform Boundary, Stacey H. Gerasimov, Eben B. Hodgin, James L. Crowley, and Nicholas L. Swanson-Hysell

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Determining the Initiation of Shear Zone Deformation Using Titanite Petrochronology, Claire O. Harrigan, Sarah F. Trevino, Mark D. Schmitz, and Basil Tikoff

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Source-to-Sink Tandem Geochronology Reveals Tectonic Influences on the Cambrian Transcontinental Arch of Laurentia, Mark E. Holland, Michael Mohr, Mark Schmitz, Lauren Madronich, and Karl Karlstrom

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Snow Water Equivalent Retrieval Over Idaho – Part 2: Using L-Band UAVSAR Repeat-Pass Interferometry, Zachary Hoppinen, Shadi Oveisgharan, Hans-Peter Marshall, Ross Mower, Kelly Elder, and Carrie Vuyovich

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The Portable Hand Streamer: Rapid Seismic Imaging for Shallow Targets, Lee M. Liberty and L. Thomas Otheim

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A Jurassic Metamorphic-Anatectic Event in the Jiaodong Peninsula, Eastern China: Zircon and Titanite U-Pb Ages of Migmatites and Their Implications, Lishuang Liu, Matthew J. Kohn, and Jinghui Guo

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Formation of Lithium-Rich Pegmatites via Rapid Crystallization and Shearing: Case Study from the South Tibetan Detachment, Himalaya, Xiao-Chi Liu, Matthew J. Kohn, Jia-Min Wang, Shao-Xiong He, Ru-Cheng Wang, and Fu-Yuan Wu

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Zircon and the Role of Magmatic Petrogenesis in the Formation of Felsic-Hosted Volcanogenic Massive Sulfide (VMS) Deposits: A Case Study from the Mid-Paleozoic Yukon-Tanana Terrane, Northern Canadian Cordillera, Matthew J. Manor, Stephen J. Piercey, and Corey J. Wall

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An Early Miocene (Aquitanian) Mangrove Fossil Forest Buried by a Volcanic Lahar at Barro Colorado Island, Panama, Camila Martínez, Diana K. Pérez-Lara, David S. Avellaneda-Jiménez, Dayenari Caballero-Rodríguez, Oris Rodríguez-Reyes, James L. Crowley, and Carlos Jaramillo

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A Laser Ultrasound System to Non-Invasively Measure Compression Waves in Granular Ice Mixes, J. Chris McCaslin, T. Dylan Mikesell, and Hans-Peter Marshall

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A Cold Laboratory Hyperspectral Imaging System to Map Grain Size and Ice Layer Distributions in Firn Cores, Ian E. McDowell, Kaitlin M. Keegan, S. McKenzie Skiles, Christopher P. Donahue, Erich C. Osterberg, Robert L. Hawley, and Hans-Peter Marshall

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High-Precision U-Pb Geochronology Links Magmatism in the Southwestern Laurentia Large Igneous Province and Midcontinent Rift, M. T. Mohr, M. D. Schmitz, N. L. Swanson-Hysell, K. E. Karlstrom, F. A. Macdonald, M. E. Holland, Y. Zhang, and N. S. Anderson

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Snow Water Equivalent Retrieval Over Idaho – Part 1: Using Sentinel-1 Repeat-Pass Interferometry, Shadi Oveisgharan, Robert Zinke, Zachary Hoppinen, and Hans Peter Marshall

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Cold-Season Precipitation Sensitivity to Microphysical Parameterizations: Hydrologic Evaluations Leveraging Snow Lidar Datasets, W. J. Rudisill, A. N. Flores, H. P. Marshall, E. Siirila-Woodburn, D. R. Feldman, A. M. Rhoades, Z. Xu, and A. Morales

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Petrology and Lithogeochemistry of Paleozoic Alkalic Magmatism in the Selwyn Basin, Yukon, Canada, Emma J. Scanlan, Matthew I. Leybourne, Daniel Layton-Matthews, Nancy Van Wagoner, Suzanne Paradis, Steve Piercey, and James L. Crowley

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Geothermal Play Fairway Analysis, Part 1: Example from the Snake River Plain, Idaho, John W. Shervais, Jacob DeAngelo, Jonathan M. Glen, Dennis L. Nielson, Sabodh Garg, Patrick Dobson, Erika Gasperikova, Eric Sonnenthal, Lee M. Liberty, Dennis L. Newell, Drew Siler, and James P. Evans

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Palynostratigraphy and Bayesian Age Stratigraphic Model of New CA-ID-TIMS Zircon Ages from the Walloon Coal Measures, Surat Basin, Australia, K. Sobczak, J. Cooling, T. Crossingham, H. G. Holl, M. Reilly, J. Esterle, J. L. Crowley, C. Hannaford, M. T. Mohr, Z. Hamerli, and S. Hurter

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Paleozoic Evolution of the Yukon-Tanana Terrane of the North American Cordillera, NW British Columbia, R. Soucy La Roche, A. Zagorevski, N. L. Joyce, and J. L. Crowley

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A UAV Based CMOS Ku-Band Metasurface FMCW Radar System for Low-Altitude Snowpack Sensing, Adrian Tang, Nacer Chahat, Yangyho Kim, Arhison Bharathan, Gabriel Virbila, Hans-Peter Marshall, Thomas Van Der Weide, Gaurangi Gupta, Raunika Anand, Goutam Chattopadhyay, and Mau-Chung Frank Chang

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Geotechnical Characterisation of Coal Spoil Piles Using High-Resolution Optical and Multispectral Data: A Machine Learning Approach, Sureka Thiruchittampalam, Bikram Pratap Banerjee, Nancy F. Glenn, and Simit Raval

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Thermal Transient PDC Behavior Induced by Topographic Drops: A Test Case at Mt. St. Helens, USA, Matteo Trolese, Matteo Cerminara, Guido Giordano, Brittany D. Brand, Nicholas Pollock, Francesca Cifelli, and Massimo Mattei

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Magnesium Isotope Behavior in Oceanic Magmatic Systems: Constraints from Mid-Ocean Ridge Lavas from the East Pacific Rise, Sijie Wang, Jinting Kang, Xin Ding, M. R. Perfit, V. D. Wanless, and Fang Huang

Submissions from 2023

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Assessing Controls on Ice Dynamics at Crane Glacier, Antarctic Peninsula, Using a Numerical Ice Flow Model, Rainey Aberle, Ellyn M. Enderlin, Hans-Peter Marshall, Michal Kopera, and Tate G. Meehan

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Constraints on Near-Ridge Magmatism Using 40Ar/39Ar Geochronology of Enriched MORB from the 8°20' N Seamount Chain, Molly K. Anderson, Michael R. Perfit, Leah E. Morgan, Daniel J. Fornari, Michael Cosca, and V. Dorsey Wanless

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Subduction Initiation Recorded in the Dadeville Complex of Alabama and Georgia, Southeastern United States, Naomi A. Becker, Freya R. George, George L. Guice, James L. Crowley, Wendy R. Nelson, Joseph F. Browning-Hanson, Supratik Roy, and Daniel R. Viete

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Dynamic Mass Loss from Greenland's Marine-Terminating Peripheral Glaciers (1985–2018), Katherine E. Bollen, Ellyn M. Enderlin, and Rebecca Muhlheim

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Snowpack Relative Permittivity and Density Derived from Near-Coincident Lidar and Ground-Penetrating Radar, Randall Bonnell, Daniel McGrath, Andrew R. Hedrick, Ernesto Trujillo, Tate G. Meehan, Keith Williams, Hans-Peter Marshall, Graham Sexstone, John Fulton, Michael J. Ronayne, Steven R. Fassnacht, Ryan Webb, and Katherine E. Hale

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Advances in Our Understanding of Pyroclastic Current Behavior from the 1980 Eruption Sequence of Mount St. Helens Volcano (Washington), USA, Brittany D. Brand and Aaron A. Marshall

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Astronomical and Tectonic Influences on Climate and Deposition Revealed Through Radioisotopic Geochronology and Bayesian Age-Depth Modeling of the Early Eocene Green River Formation, Wyoming, USA, Benjamin T. Bruck, Brad S. Singer, Mark D. Schmitz, Alan R. Carroll, Stephen Meyers, Andrew P. Walters, and Brian R. Jicha

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High-Precision U-Pb Geochronology and Bayesian Age-Depth Modeling of the Glacial-Postglacial Transition of the Southern Paraná Basin: Detailing the Terminal Phase of the Late Paleozoic Ice Age on Gondwana, J. Cagliari, M. D. Schmitz, J. Tedesco, F. A. Trentin, and E. L. C. Lavina

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Toward a Cenozoic History of Atmospheric CO2, Cenozoic CO2 Proxy Integration Project (CENO2PIP) Consortium

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Geophysics-Informed Hydrologic Modeling of a Mountain Headwater Catchment for Studying Hydrological Partitioning in the Critical Zone, Hang Chen, Qifei Niu, Aida Mendieta, John Bradford, and James McNamara

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Optimizing Raman Spectral Collection for Quartz and Zircon Crystals for Elastic Thermobarometry, Mayara F. Cizina, T. Dylan Mikesell, and Matthew J. Kohn

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Early Ordovician Seamounts Preserved in the Canadian Cordillera: Implications for the Rift History of Western Laurentia, Rose N. Cobbett, Luke P. Beranek, Stephen J. Piercey, James L. Crowley, and Maurice Colpron

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Apatite Reference Materials for SIMS Microanalysis of Isotopes and Trace Elements, James L. Crowley and Mark Schmitz

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Evenki Hunters' and Reindeer Herders' Mobility: Transformation of Autonomy Regimes, Vladimir Davydov

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Precise U-Pb Age Models Refine Neoproterozoic Western Laurentian Rift Initiation, Correlation, and Earth System Changes, Carol Dehler, Mark Schmitz, Abigail Bullard, Susannah Porter, Mike Timmons, Karl Karlstrom, and Hannah Cothren

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Estimates of Fine Fuel Litter Biomass in the Northern Great Basin Reveal Increases During Short Fire-Free Intervals Associated with Invasive Annual Grasses, Josh Enterkine

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The Surface Atmosphere Integrated Field Laboratory (SAIL) Campaign, D. R. Feldman, A. C. Aiken, W. R. Boos, R. W. H. Carroll, V. Chandrasekar, S. Collis, J. M. Creamean, G. De Boer, J. Deems, P. J. DeMott, J. Fan, A. N. Flores, D. Gochis, M. Grover, T. C. J. Hill, A. Hodshire, E. Hulm, C. C. Hume, R. Jackson, F. Junyent, A. Kennedy, M. Kumjian, E. J. T. Levin, J. D. Lundquist, J. O'Brien, M. S. Raleigh, J. Reithel, A. Rhoades, K. Rittger, W. Rudisill, Z. Sherman, E. Siirila-Woodburn, S. M. Skiles, J. N. Smith, R. C. Sullivan, A. Theisen, M. Tuftedal, A. C. Varble, A. Wiedlea, S. Wielandt, K. Williams, and Z. Xu

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A Multidisciplinary Approach to Resolving the End-Guadalupian Extinction, Christopher R. Fielding, Scott E. Bryan, James L. Crowley, Tracy D. Frank, Michael T. Hren, Chris Mays, Stephen McLoughlin, Jun Shen, Peter J. Wagner, Arne Winguth, and Cornelia Winguth

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Future Direction of Fuels Management in Sagebrush Rangelands, Nancy F. Glenn and Mojtaba Sadegh

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New Age Constraints on the Break-Up of Rodinia and Amalgamation of Southwestern Gondwana from the Choquequirao Formation in Southwestern Peru, Eben Blake Hodgin, Victor Carlotto, Francis A. Macdonald, Mark D. Schmitz, and James L. Crowley

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Lidar and Deep Learning Reveal Forest Structural Controls on Snowpack, Ahmad Hojatimalekshah, Joel Gongora, Josh Enterkine, Nancy F. Glenn, T. Trevor Caughlin, Hans-Peter Marshall, and Christopher A. Hiemstra

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Characterisation of Three Sri Lankan Zircon Megacrysts as Potential Reference Materials for Microbeam U-Pb Geochronology and Hf-O-Zr Isotope Measurements, Pan Hu, James Crowley, Yuanbao Wu, Chenxi Zhang, Xiaoping Xia, Tao Long, Shaobing Zhang, Zhian Bao, Lei Xu, Lanping Feng, Wen Zhang, and Zaochu Hu

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The Influence of Volcano Topographic Changes on Infrasound Amplitude: Lava Fountains at Mt. Etna in 2021, Adriana Iozzia, Leighton M. Watson, Massimo Cantarero, Emanuela De Beni, Giuseppe Di Grazia, Gaetana Ganci, Jeffrey B. Johnson, Eugenio Privitera, Cristina Proietti, Mariangela Sciotto, and Andrea Cannata

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Precise Zircon U-Pb Dating of the Mesoproterozoic Gawler Large Igneous Province, South Australia, Elizabeth A. Jagodzinski, Anthony J. Reid, James L. Crowley, Claire E. Wade, and Stacey Curtis

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Infrasound Detection of Approaching Lahars, J. B. Johnson, J. F. Anderson, J. Mock, and A. Bosa

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Volcano Opto-Acoustics: Mapping the Infrasound Wavefield at Yasur Volcano (Vanuatu), J. B. Johnson, T. Boyer, L. M. Watson, and J. F. Anderson

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Causes, Responses, and Implications of Anthropogenic versus Natural Flow Intermittence in River Networks, Kendra E. Kaiser

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Pacific Northwest Streamflow Data Landscape: A Report from the 2022 Streamflow Data Roundtables, Kendra E. Kaiser

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A Survey of Non-USGS Continuous Streamflow Gaging Networks in the Pacific Northwest, Kendra E. Kaiser, Kyle Blasch, and Mcallister Hall

Tested: Adventures of an American Scientist in Pandemic China, Matthew J. Kohn

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Elastic Thermobarometry, Matthew J. Kohn, Mattia L. Mazzucchelli, and Matteo Alvaro

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Is Macroporosity Controlled by Complexed Clay and Soil Organic Carbon?, Aaron N. Koop, Daniel R. Hirmas, Sharon A. Billings, Li Li, Alejandro Cueva, Xi Zhang, Hang Wen, Attila Nemes, Lígia F. T. Souza, Hoori Ajami, Alejandro N. Flores, Aoesta K. Rudick, Annalise Guthrie, Lola M. Klamm, Micah Unruh, and Pamela L. Sullivan

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Geochronology and Geochemistry of Zircon from Early to Middle Devonian Granitic and Felsic Volcanic Rocks from the Cashes Ledge Igneous Suite, Central Gulf of Maine, USA, Yvette D. Kuiper, Sandra M. Barr, James L. Crowley, and A. Kate Souders

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Protracted Melt-Present Deformation During the Rigolet Phase of the Grenvillian Orogeny: Insights from Geochronology Along the Highway 117 Transect Through the Grenville Province in Western Quebec, Canada, Christopher Lambert, Félix Gervais, James L. Crowley, Abdelali Moukhsil, and Charles Kavanagh-Lepage

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U-Pb Zircon Dates from North American and British Avalonia Bracket the Lower–Middle Cambrian Boundary Interval, with Evaluation of the Miaolingian Series as a Global Unit, Ed Landing, Mark D. Schmitz, Stephen R. Westrop, and Gerd Geyer

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Compositional and Metamorphic Controls on Tectonic Erosion Along a Continental Subduction-Collision Zone: Implications from Mafic Granulites in the Northern Sulu Orogen, Lishuang Liu, Fulai Liu, Matthew J. Kohn, and Jinghui Guo

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Revised Onset Age of Magnetochron M0r: Chronostratigraphic and Geologic Implications, Youjuan Li, Huafeng Qin, Brian R. Jicha, Magdalena H. Huyskens, Corey J. Wall, Robin B. Trayler, Qing-Zhu Yin, Mark Schmitz, Yongxin Pan, Chenglong Deng, Brad S. Singer, Huaiyu He, and Rixiang Zhu

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U–Pb Zircon Ages, Mapping, and Biostratigraphy of the Payette Formation and Idaho Group North of the Western Snake River Plain, Idaho: Implications for Hydrocarbon System Correlation, Renee L. Love, Reed S. Lewis, Spencer H. Wood, Dennis M. Feeney, and Mark D. Schmitz

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Residents’ Information Seeking Behavior and Protective Action for Earthquake Hazards in the Portland Oregon Metropolitan Area, Carson C. MacPherson-Krutsky, Michael K. Lindell, and Brittany D. Brand

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Tectonomagmatic Evolution of Southwestern Laurentia: Insights from Zircon U-Pb Geochronology and Hafnium Isotopic Composition of the Red Bluff Granite Suite, West Texas, USA, Munazzam Ali Mahar, Philip C. Goodell, Jason W. Ricketts, Eric J. Kappus, James L. Crowley, and Anthony M. Alvarez

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Infrasound Array Analysis of Rapid Mass Movements in Mountain Regions, Emanuele Marchetti and Jeffrey B. Johnson

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Operational Water Forecast Ability of the HRRR-iSnobal Combination: An Evaluation to Adapt into Production Environments, Joachim Meyer, John Horel, Patrick Kormos, Andrew Hedrick, Ernesto Trujillo, and S. McKenzie Skiles

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Brief Communication: Is Vertical Shear in an Ice Shelf (Still) Negligible?, Chris Miele, Timothy C. Bartholomaus, and Ellyn M. Enderlin

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UAV-Based Quantification of Dynamic Lahar Channel Morphology at Volcán de Fuego, Guatemala, Jerry C. Mock, Jeffrey B. Johnson, Armando Pineda, Gustavo Bejar, and Amilcar Roca

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Early Permian Zircon Ages from the P. confluens and P. pseudoreticulata Spore-Pollen Zones in the Southern Bonaparte and Canning Basins, Northwestern Australia, A. J. Mory, J. Crowley, J. Backhouse, R. S. Nicoll, and J. D. Gorter

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Cambrian Explosion Condensed: High-Precision Geochronology of the Lower Wood Canyon Formation, Nevada, Lyle L. Nelson, James L. Crowley, Emily F. Smith, Darin M. Schwartz, Eben B. Hodgin, and Mark D. Schmitz

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Revisiting the Diffuse Layer Polarization of a Spherical Grain in Electrolytes with Numerical Solutions of Nernst-Planck-Poisson Equations, Qifei Niu

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New U–Pb Geochronology for the Central Atlantic Magmatic Province, Critical Reevaluation of High-Precision Ages and Their Impact on the End-Triassic Extinction Event, Alisson L. Oliveira, Mark D. Schmitz, Corey J. Wall, James L. Crowley, Antomat A. Macêdo Filho, and Maria Helena B. M. Hollanda

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Sex, Body Size, and Winter Weather Explain Migration Strategies in a Partial Migrant Population of American Kestrels, Sadie C. Ranck, Christina M. Garsvo, Darin M. Schwartz, Linda M. Reynard, Matthew J. Kohn, and Julie A. Heath

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Timing of the Greenhorn Transgression and OAE2 in Central Utah Using CA-TIMS U-Pb Zircon Dating, Ray K. Renaut, Ryan T. Tucker, M. Ryan King, James L. Crowley, Ethan G. Hyland, and Lindsay E. Zanno

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Archean (3.3 Ga) Paleosols and Paleoenvironments of Western Australia, Gregory J. Retallack and Mark D. Schmitz

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The Temporal Evolution of Subduction Initiation in the Samail Ophiolite: High-Precision U–Pb Zircon Petrochronology of the Metamorphic Sole, Matthew Rioux, Joshua M. Garber, Michael Searle, James L. Crowley, Sally Stevens, Mark Schmitz, Andrew Kylander-Clark, Kayla Leal, Tyler Ambrose, and Andrew J. Smye

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Evaluating 3 Decades of Precipitation in the Upper Colorado River Basin from a High-Resolution Regional Climate Model, William Rudisill, Alejandro Flores, and Rosemary Carroll

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Exploring Background Noise with a Large-N Infrasound Array: Waterfalls, Thunderstorms, and Earthquakes, L. T. Scamfer and J. F. Anderson

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How Low Can You Go?: Widespread Challenges in Measuring Low Stream Discharge and a Path Forward, Erin C. Seybold, Anna Bergstrom, C. Nathan Jones, Amy J. Burgin, Sam Zipper, Sarah E. Godsey, Walter K. Dodds, Margaret A. Zimmer, Margaret Shanafield, Thibault Datry, Raphael D. Mazor, Mathis L. Messager, Julian D. Olden, Adam Ward, Songyan Yu, Kendra E. Kaiser, Arial Shogren, and Richard H. Walker

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Critical Workforce Skills for Bachelor-Level Geoscientists: An Analysis of Geoscience Job Advertisements, G. W. Shafer, K. Viskupic, and A. E. Egger

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Coastal Response to Global Warming During the Paleocene-Eocene Thermal Maximum, Glenn R. Sharman, Jacob A. Covault, Peter P. Flag, Regan Dunn, Preston Fussee-Durham, Toti E. Larson, Timothy M. Shanahan, Kalli Dubois, John B. Shaw, James L. Crowley, and Barry Shaulis

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New Insights into the Age and Origin of Two Small Cretaceous Seamount Chains Proximal to the Northwestern Hawaiian Ridge, Arturo Sotomayor, Andrea Balbas, Kevin Konrad, Anthony A. P. Koppers, Jasper G. Konter, V. Dorsey Wanless, Thomas F. Hourigan, Christopher Kelley, and Nicole Raineault

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Controls on the Presence and Storage of Soil Inorganic Carbon in a Semi-Arid Watershed, Christopher Stanbery, Zahra Ghahremani, David P. Huber, Ryan Will, Shawn G. Benner, Nancy Glenn, Tanzila Hanif, Lucas Spaete, Danielle Terhaar, Kathleen A. Lohse, Mark Seyfried, William Freutel, and Jennifer L. Pierce

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Estimating Snow Accumulation and Ablation with L-Band Interferometric Synthetic Aperture Radar (InSAR), Jack Tarricone, Ryan W. Webb, Hans-Peter Marshall, Anne W. Nolin, and Franz J. Meyer

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Whitewater Sound Dependence on Discharge and Wave Configuration at an Adjustable Wave Feature, Taylor A. Tatum, Jacob F. Anderson, and Timothy J. Ronan

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Drivers of Spatiotemporal Patterns of Surface Water Inputs in a Catchment at the Rain-Snow Transition Zone of the Water-Limited Western United States, E. Trujillo and J. McNamara

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Exceptional Age Constraint on a Fossiliferous Sedimentary Succession Preceding the Cretaceous Thermal Maximum, Ryan T. Tucker, James L. Crowley, Michael T. Mohr, Ray K. Renaut, Peter J. Makovicky, and Lindsay E. Zanno

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A Bayesian Framework for Subsidence Modeling in Sedimentary Basins: A Case Study of the Tonian Akademikerbreen Group of Svalbard, Norway, Tianran Zhang, C. Brenhin Keller, Mark J. Hoggard, Alan D. Rooney, Galen P. Halverson, Kristin D. Bergmann, James L. Crowley, and Justin V. Strauss

Submissions from 2022

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Volcano Infrasound: Progress and Future Directions, Jacob F. Anderson and Jeffrey B. Johnson

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Apatites for Destruction: Reference Apatites from Morocco and Brazil for U-Pb Petrochronology and Nd and Sr Isotope Geochemistry, Francisco E. Apen, Corey J. Wall, John M. Cottle, Mark D. Schmitz, Andrew R. C. Kylander-Clark, and Gareth G. E. Seward

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Evidence for Short Temporal Atmospheric Variations Observed by Infrasonic Signals: 1. The Troposphere, G. Averbuch, M. Ronac-Giannone, S. Arrowsmith, and J. F. Anderson

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Electrochemically Induced Amorphous-to-Rock-Salt Phase Transformation in Niobium Oxide Electrode for Li-Ion Batteries, Pete Barnes, Yunxing Zuo, Kiev Dixon, Dewen Hou, Sungsik Lee, Zhiyuan Ma, Justin G. Connell, Hua Zhou, Changjian Deng, Kassiopeia Smith, Eric Gabriel, Yuzi Liu, Olivia O. Maryon, Paul H. Davis, Haoyu Zhu, Yingge Du, Ji Qi, Zhuoying Zhu, Chi Chen, Zihua Zhu, Yadong Zhou, Paul J. Simmonds, Ariel E. Briggs, Darin Schwartz, Shyue Ping Ong, and Hui Xiong

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Developing a Soil Column System to Measure Hydrogeophysical Properties of Unconsolidated Sediment, Taylor Bienvenue, Jing Xie, and Qifei Niu

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Tower Based C-Band Radar Observations of the Snowpack, Isis Brangers, Hans-Peter Marshall, Gabrielle De Lannoy, and Hans Lievens

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New High-Precision U-Pb Zircon Age of the Irati Formation (Paraná Basin) and Implications for the Timing of the Kungurian Anoxic Events Recorded in Southern Gondwana, Joice Cagliari, Henrique Serratt, Marlise C. Cassel, Mark D. Schmitz, and Farid Chemale Jr.

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Pulses in Silicic Arc Magmatism Initiate End-Permian Climate Instability and Extinction, Timothy Chapman, Luke A. Milan, Ian Metcalfe, Phil L. Blevin, and Jim Crowley

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Statistical Analysis of Aquifer Hydraulic Properties by a Continuous Pumping Tomography Test: Application to the Boise Hydrogeophysical Research Site, Kan Bun Cheng, Gedeon Dagan, Warren Barrash, Michael Cardiff, and Avinoam Rabinovich

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Improving Moisture Content Estimation from Field Resistivity Measurements with Subsurface Structure Information, Hang Chen and Qifei Niu

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Late Triassic to Jurassic Magmatic and Tectonic Evolution of the Intermontane Terranes in Yukon, Northern Canadian Cordillera: Transition from Arc to Syn-Collisional Magmatism and Post-Collisional Lithospheric Delamination, Maurice Colpron, Patrick J. Sack, James L. Crowley, Luke P. Beranek, and Murray M. Allan

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Novel Age Constraints for the Onset of the Steptoean Positive Isotopic Carbon Excursion (SPICE) and the Late Cambrian Time Scale Using High-Precision U-Pb Detrital Zircon Ages, Hannah R. Cothren, Thomas P. Farrell, Frederick A. Sundberg, Carol M. Dehler, and Mark D. Schmitz

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Diverse Magmatic Evolutionary Trends of the Northern Andes Unraveled by Paleocene to Early Eocene Detrital Zircon Geochemistry, James L. Crowley

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Geochronology and Sediment Provenance of the Precipice Sandstone and Evergreen Formation in the Surat Basin, Australia: Implications for the Palaeogeography of Eastern Gondwana, James L. Crowley

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Possible Bipolar Global Expression of the P3 and P4 Glacial Events of Eastern Australia in the Northern Hemisphere: Marine Diamictites and Glendonites from the Middle to Upper Permian in Southern Verkhoyanie, Siberia, V. I. Davydov

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Optimizing Process-Based Models to Predict Current and Future Soil Organic Carbon Stocks at High-Resolution, Marie-Anne de Graaff and Ryan Will

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Late Cretaceous Hydrous Melting and Reworking of Juvenile Lower Crust of the Eastern Gangdese Magmatic Arc, Southern Tibet, Huixia Ding, Zeming Zhang, and Matthew J. Kohn

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Uncertainty of ICESat-2 ATL06- and ATL08-Derived Snow Depths for Glacierized and Vegetated Mountain Regions, Ellyn M. Enderlin, Colten M. Elkin, Madeline Gendreau, H.P. Marshall, Shad O'Neel, Christopher McNeil, Caitlyn Florentine, and Louis Sass

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The Potential of Citizen Science Data to Complement Satellite and Airborne Lidar Tree Height Measurements: Lessons from The GLOBE Program, Josh Enterkine, Brian A. Campbell, Holli Kohl, Nancy F. Glenn, Kristen Weaver, David Overoye, and Deanna Danke

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Relative Timing of Off-Axis Volcanism from Sediment Thickness Estimates on the 8°20’N Seamount Chain, East Pacific Rise, Andrea Fabbrizzi, Ross Parnell-Turner, Patricia M. Gregg, Daniel J. Fornari, Michael R. Perfit, V. Dorsey Wanless, and Molly Anderson

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From Soils to Streams: Connecting Terrestrial Carbon Transformation, Chemical Weathering, and Solute Export Across Hydrological Regimes, Alejandro Flores and Katie Murenbeeld

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Elevation and Aspect Effects on Soil Microclimate and the Germination Timing of Fall-Planted Seeds, Nancy F. Glenn, Ahmad Hojjati, and Josh Enterkine

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Why Does Snowmelt-Driven Streamflow Response to Warming Vary?: A Data-Driven Review and Predictive Framework, Beatrice L. Gordon, Paul D. Brooks, Sebastian A. Krogh, Gabrielle F. S. Boisrame, Rosemary W. BE623H. Carroll, James P. McNamara, and Adrian A. Harpold

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Incorporating Microtopography in a Land Surface Model and Quantifying the Effect on the Carbon Cycle, J. D. Graham, D. M. Ricciuto, N. F. Glenn, and P. J. Hanson

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Recalibrating the Devonian Time Scale: A New Method for Integrating Radioisotopic and Astrochronologic Ages in a Bayesian Framework, Claire O. Harrigan, Mark D. Schmitz, D. Jeffrey Over, Robin B. Trayler, and Vladimir I. Davydov

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Snow Depth Retrieval from L-Band Data Based on Repeat Pass InSAR Techniques, Adebisi Naheem Idowu and Hans-Peter Marshall

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A Robust Age Model for the Cryogenian Pocatello Formation of Southeastern Idaho (Northwestern USA) from Tandem in situ and Isotope Dilution U-Pb Dating of Volcanic Tuffs and Epiclastic Detrital Zircons, Vincent H. Isakson, Mark D. Schmitz, Carol M. Dehler, Francis A. Macdonald, and W. Adolph Yonkee

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A Typology for Characterizing Human Action in MultiSector Dynamics Models, Kendra Kaiser

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A Classification Framework to Assess Ecological, Biogeochemical, and Hydrologic Synchrony and Asynchrony, Kendra E. Kaiser

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Predictions and Drivers of Sub-Reach-Scale Annual Streamflow Permanence for the Upper Missouri River Basin: 1989–2018, Kendra E. Kaiser

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Reconceptualizing the Hyporheic Zone for Nonperennial Rivers and Streams, Kendra E. Kaiser

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NSF Supported Socio-Environmental Research: How Do Crosscutting Programs Affect Research Funding, Publication, and Citation Patterns?, Kendra E. Kaiser, Anna E. Braswell, and Megan L. Fork

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Late Cretaceous Metamorphism and Anatexis of the Gangdese Magmatic Arc, South Tibet: Implications for Thickening and Differentiation of Juvenile Crust, Matthew J. Kohn

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Plutonic-Subvolcanic Connection of the Himalayan Leucogranites: Insights from the Eocene Lhunze Complex, Southern Tibet, Matthew J. Kohn

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Seasonality of Precipitation in the Southwestern United States During the Late Pleistocene Inferred from Stable Isotopes in Herbivore Tooth Enamel, Matthew J. Kohn, Kathleen B. Springer, Jeffrey S. Pigati, Linda M. Reynard, Amanda E. Drewicz, Justin Crevier, and Eric Scott

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Evapotranspiration Across the Rain–Snow Transition in a Semi-Arid Watershed, Maggi Kraft and James P. McNamara

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Systematic Integration of Applications into the Surface Biology and Geology (SBG) Earth Mission Architecture Study, Christine M. Lee, Nancy F. Glenn, E. Natasha Stavros, Jeff Luvall, Karen Yuen, and Stephanie Schollaert Uz

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Comment on “Aquifer Characterization Using Fiber Bragg Grating Multi-Level Monitoring System”, Carsten Leven and Warren Barrash

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Fiber Optic Pressure Measurements Open Up New Experimental Possibilities in Hydrogeology, Carsten Leven and Warren Barrash

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Regolith and Host Rock Influences on CO2 Leakage: Active Source Seismic Profiling Across the Little Grand Wash Fault, Utah, Lee M. Liberty, Jonathan Yelton, Elin Skurtveit, Alvar Braathen, Ivar Midtkandal, and James P. Evans

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Sentinel-1 Snow Depth Retrieval at Sub-Kilometer Resolution Over the European Alps, Hans Lievens, Isis Brangers, Hans-Peter Marshall, Tobias Jonas, Marc Olefs, and Gabriëlle De Lannoy

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Synchronous Retreat of Southeast Greenland's Peripheral Glaciers, Julia Liu, Ellyn Enderlin, Hans-Peter Marshall, and Andre Khalil

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Interpreting Sentinel-1 SAR Backscatter Signals of Snowpack Surface Melt/Freeze, Warming, and Ripening, Through Field Measurements and Physically-Based SnowModel, Jewell Lund, Richard R. Forster, Elias J. Deeb, Glen E. Liston, S. McKenzie Skiles, and Hans-Peter Marshall

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From Information to Public Preparedness in the Cascadia Subduction Zone: Examining Risk Communication Outcomes in Metropolitan Portland, OR, Carson C. MacPherson-Krutsky, Brittany D. Brand, and Michael K. Lindell

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Age and Chemostratigraphy of the Finlayson Lake District, Yukon: Implications for Volcanogenic Massive Sulfide (VMS) Mineralization and Tectonics Along the Western Laurentian Continental Margin, Matthew J. Manor, Stephen J. Piercey, Donald C. Murphy, and Corey J. Wall

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High-Precision CA-ID-TIMS U-Pb Zircon Geochronology of Felsic Rocks in the Finlayson Lake VMS District, Yukon: Linking Paleozoic Basin-Scale Accumulation Rates to the Occurrence of Subseafloor Replacement-Style Mineralization, Matthew J. Manor, Stephen J. Piercey, Corey J. Wall, and Nikola Denisová

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The Mafic Curacautín Ignimbrite of Llaima Volcano, Chile, Aaron A. Marshall, Brittany D. Brand, Jade M. Bowers, Megan Walker, V. Dorsey Wanless, and Pedro Valdivia

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Autobrecciation and Fusing of Mafic Magma Preceding Explosive Eruptions, Aaron A. Marshall, Michael Manga, Brittany D. Brand, and Benjamin J. Andrews

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Airborne Snowsar Data at X and Ku Bands Over Boreal Forest, Alpine and Tundra Snow Cover, Hans-Peter Marshall

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Review Article: Global Monitoring of Snow Water Equivalent Using High-Frequency Radar Remote Sensing, Hans-Peter Marshall

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Crustal Structure Across the West Antarctic Rift System from Multicomponent Ambient Noise Surface Wave Tomography, Thomas Dylan Mikesell, Aurélien Mordret, Zongbu Xu, and William B. Frank

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Embracing the Dynamic Nature of Soil Structure: A Paradigm Illuminating the Role of Life in Critical Zones of the Anthropocene, K. Murenbeeld and A. Flores

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A Bulk Annealing and Dissolution-Based Zircon Concentration Method for Mafic Rocks, A. L. Oliveira, M. D. Schmitz, C. J. Wall, and M. H. B. M. Hollanda

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Food Quality, Security, and Thermal Refuge Influence the Use of Microsites and Patches by Pygmy Rabbits (Brachylagus idahoensis) Across Landscapes and Seasons, Peter J. Olsoy, Charlotte R. Milling, Jordan D. Nobler, Meghan J. Camp, Lisa A. Shipley, Jennifer S. Forbey, Janet L. Rachlow, and Daniel H. Thornton

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Coal-Bearing Fluvial Cycles of the Late Paleozoic Tropics: Astronomical Control on Sediment Supply Constrained by High-Precision Radioisotopic Ages, Upper Silesian Basin, Stanislav Opluštil, Jiří Laurin, Lada Hýlová, Jakub Jirásek, Mark Schmitz, and Martin Sivek

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Thermal Regime of the Lower Crust in the Eastern Khondalite Belt, North China Craton, Constrained by Zr-in-Rutile Thermometry Mapping, Yang Qi, Matthew J. Kohn, Guangyu Huang, Yuanyuan Zheng, Shujuan Jiao, and Jinghui Guo

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Anthropogenic Stressors Compound Climate Impacts on Inland Lake Dynamics: The Case of Hamun Lakes, Arash Modaresi Rad, Jason Kreitler, John T. Abatzoglou, Kendra Fallon, Kevin R. Roche, and Mojtaba Sadegh

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Upper-Plate Structure and Tsunamigenic Faults Near the Kodiak Islands, Alaska, USA, Marlon D. Ramos, Lee M. Liberty, Peter J. Haeussler, and Robert Humphreys

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Accuracy and Practical Considerations for Doubly Labeled Water Analysis in Nutrition Studies Using a Laser-Based Isotope Instrument (Off-Axis Integrated Cavity Output Spectroscopy), Linda M. Reynard, William W. Wong, and Noreen Tuross

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Controls on the Frequency Content of Near-Source Infrasound at Open-Vent Volcanoes: A Case Study from Volcán Villarrica, Chile, Bryan B. Rosenblatt, Jeffrey B. Johnson, Jacob F. Anderson, Keehoon Kim, and Scott J. Gauvain

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Drone Imagery Protocols to Map Vegetation are Transferable Between Dryland Sites Across an Elevational Gradient, Anna Roser, Josh Enterkine, Juan M. Requena-Mullor, Nancy F. Glenn, Alex R. Boehm, Marie-Anne de Graaff, Patrick E. Clark, Fred Pierson, and T. Trevor Caughlin

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Evaluating Long-Term One-Way Atmosphere-Hydrology Simulations and the Impacts of Two-Way Coupling in Four Mountain Watersheds, William Rudisill, Kendra E. Kaiser, and Alejandro N. Flores

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Emplacement of the Franklin Large Igneous Province and Initiation of the Sturtian Snowball Earth, Mark D. Schmitz

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Final Inversion of the Midcontinent Rift During the Rigolet Phase of the Grenvillian Orogeny, Mark D. Schmitz

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Low-Volume Magmatism Linked to Flank Deformation on Isla Santa Cruz, Galápagos Archipelago, Using Cosmogenic 3He Exposure and 40Ar/39Ar Dating of Fault Scarps and Lavas, D. M. Schwartz, K. Harpp, M. D. Kurz, E. Wilson, and R. Van Kirk

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Infrasonic Gliding Reflects a Rising Magma Column at Mount Etna (Italy), Mariangela Sciotto, Leighton M. Watson, Andrea Cannata, Massimo Cantarero, Emanuela De Beni, and Jeffrey B. Johnson

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Analysis of Skills Sought by Employers of Bachelors-Level Geoscientists, Gregory Shafer, Karen Viskupic, and Anne E. Egger

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Techniques for Managing Polyhedral Dataflow Graphs, Ravi Shankar, Aaron Orenstein, Anna Rift, Tobi Popoola, MacDonald Lowe, Shuai Yang, T. Dylan Mikesell, and Catherine Olschanowsky

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U-Pb Geochronology and Cyclostratigraphy of the Middle Ediacaran Upper Jibalah Group, Eastern Arabian Shield, Chen Shen, Mark Schmitz, Peter Johnson, Joshua H. F. L. Davies, and Galen P. Halverson

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Drones, Virtual Reality, and Modeling: Communicating Catastrophic Dam Failure, H. R. Spero, I. Vazquez-Lopez, K. Miller, R. Joshaghani, S. Cutchin, and J. Enterkine

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Indirect Remote Sensing Techniques for Long Term Monitoring of CO2 Leakage in Geological Carbon Sequestration: A Review, Sureka Thiruchittampalam, Simitkumar Anuray Raval, Nancy F. Glenn, and Furqan Le-Hussain

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Effects of Spatial and Temporal Variability in Surface Water Inputs on Streamflow Generation and Cessation in the Rain–Snow Transition Zone, Ernesto Trujillo

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Mafic Explosive Volcanism at Llaima Volcano: 3D X-Ray Microtomography Reconstruction of Pyroclasts to Constrain Shallow Conduit Processes, Pedro Valdivia, Aaron A. Marshall, Brittany D. Brand, Michael Manga, and Christian Huber

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Adapting the CACAO Model to Support Higher Education STEM Teaching Reform, Karen Viskupic, Brittnee Earl, and Susan E. Shadle

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Zircon Trace Element Geochemistry as an Indicator of Magma Fertility in Iron Oxide Copper-Gold Provinces, C. E. Wade, J. L. Payne, K. Barovich, S. Gilbert, B. P. Wade, J. L. Crowley, A. Reid, and E. A. Jagodzinski

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New Insights on the Age and Stratigraphy of the Cisuralian Succession in the Cooper Basin, Australia, Based on U–Pb CA-TIMS Dating of Volcanic Air-Fall Tuffs, C. C. Wainman, P. J. McCabe, and J. L. Crowley

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Eustatic Sea-Level Fall and Global Fluctuations in Carbonate Production During the Carnian Pluvial Episode, Corey J. Wall and Mark D. Schmitz

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The Formation of the 8˚20’ N Seamount Chain, East Pacific Rise, Dorsey Wanless

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Geochronology and Geochemistry of the Huntington Formation, Olds Ferry Terrane, Blue Mountains Province, Northern U.S. Cordillera: Implications for Accreted Terrane Correlation and Assembly, Bryant Ware, Kyle P. Tumpane, Gene A. Kurz, Mark D. Schmitz, and Clyde J. Northrup

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Using Local Infrasound Arrays to Detect Plunging Snow Avalanches along the Milford Road, New Zealand (Aotearoa), Leighton M. Watson, Brad Carpenter, Kevin Thompson, and Jeffrey B. Johnson

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The Geochemical Evolution of Santa Cruz Island, Galápagos Archipelago, E. L. Wilson, K. S. Harpp, D. M. Schwartz, and R. Van Kirk

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Monte Carlo Simulations of Coupled Body- and Rayleigh-Wave Multiple Scattering in Elastic Media, Zongbo Xu, Ludovic Margerin, and T. Dylan Mikesell

Submissions from 2021

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An Assessment of a Shallow Geothermal Reservoir of Mae Chan Hot Spring, Northern Thailand via Magnetotelluric Surveys, Puwis Amatyakul, Spencer H. Wood, Tawat Rung-Arunwan, Chatchai Vachiratienchai, Natthaporn Prommakorn, Pornpan Chanapiwat, and Weerachai Siripunvaraporn

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Extreme Heterogeneity in Mid-Ocean Ridge Mantle Revealed in Lavas From the 8°20′N Near-Axis Seamount Chain, Molly Anderson, V. Dorsey Wanless, Michael Perfit, Ethan Conrad, Patricia Gregg, Daniel Fornari, and W. Ian Ridley

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Fragmentation Theory Reveals Processes Controlling Iceberg Size Distributions, Jan Åström, Sue Cook, Ellyn M. Enderlin, David A. Sutherland, Aleksandra Mazur, and Neil Glasser

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Diatoms in Hyporheic Sediments Trace Organic Matter Retention and Processing in the McMurdo Dry Valleys, Antarctica, Anna J. Bergstrom

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Seasonality of Solute Flux and Water Source Chemistry in a Coastal Glacierized Watershed Undergoing Rapid Change: Wolverine Glacier Watershed, Alaska, Anna Bergstrom, Joshua C. Koch, Shad O'Neel, and Emily Baker

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Precise U–Pb Baddeleyite Dating of the Derim Derim Dolerite, McArthur Basin, Northern Territory: Old and New SHRIMP and ID-TIMS Constraints, S. Bodorkos, J. L. Crowley, J. C. Claoué-Long, J. R. Amderson, and C. W. Magee Jr.

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Slope and Aspect Effects on Seedbed Microclimate and Germination Timing of Fall-Planted Seeds, Alex R. Boehm, Stuart P. Hardegree, Nancy F. Glenn, Patrick A. Reeves, Corey A. Moffet, and Gerald N. Flerchinger

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Spatiotemporal Variations in Liquid Water Content in a Seasonal Snowpack: Implications for Radar Remote Sensing, Randall Bonnell, Daniel McGrath, Keith Williams, Ryan Webb, Steven R. Fassnacht, and Hans-Peter Marshall

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Tracking Secondary Lahar Flow Paths and Characterizing Pulses and Surges Using Infrasound Array Networks at Volcán de Fuego, Guatemala, Ashley R. Bosa, Jeffrey B. Johnson, Silvio De Angelis, John J. Lyons, Amilcar Roca, Jacob F. Anderson, and Amando Pineda

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Triassic Coal Measures, Tasmania: New U–Pb CA-TIMS Ash Bed Dates and Numerical Calibration of Palynostratigraphy, C. R. Calver, D. J. Mantle, J. L. Crowley, and R. S. Nicoll

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Monitoring Tropical Forest Succession at Landscape Scales Despite Uncertainty in Landsat Time Series, T. Trevor Caughlin, Cristina Barber, Gregory P. Asner, Nancy F. Glenn, Stephanie A. Bohlaman, and Chris H. Wilson

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Effects of Material Texture and Packing Density on the Interfacial Polarization of Granular Soils, Hang Chen and Qifei Niu

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Late Devonian Magmatism and Clastic Deposition in the Upper Earn Group (Central Yukon, Canada) Mark the Transition from Passive to Active Margin Along Western Laurentia, Rose N. Cobbett, Maurice Colpron, James L. Crowley, Fabrice Cordey, Robert B. Blodgett, and Michael J. Orchard

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Stratigraphic Constraints on the Lower Cretaceous Orallo Formation, Southeastern Queensland: U–Pb Dating of Bentonite and Palynostratigraphy of Associated Strata, J. J. Cooling, J. L. Crowley, J. L. McKellar, J. S. Esterle, R. S. Nicoll, and V. Bianchi

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Tanz Zircon Megacrysts: A New Zircon Reference Material for the Microbeam Determination of U-Pb Ages and Zr-O Isotopes, James Crowley

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Age and Paleoenvironmental Significance of the Frazer Beach Member: A New Lithostratigraphic Unit Overlying the End-Permian Extinction Horizon in the Sydney Basin, Australia, James L. Crowley

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Extinction at the End-Cretaceous and the Origin of Modern Neotropical Rainforests, James L. Crowley

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Paleoenvironmental and Paleoclimatic Evolution and Cyclo- and Chrono-Stratigraphy of Upper Permian–Lower Triassic Fluvial-Lacustrine Deposits in Bogda Mountains, NW China — Implications for Diachronous Plant Evolution Across the Permian–Triassic Boundary, James L. Crowley

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Sedimentology of the Continental End‐Permian Extinction Event in the Sydney Basin, Eastern Australia, James L. Crowley

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TS-Mnz: A New Monazite Age Reference Material for U-Th-Pb Microanalysis, Jim Crowley and Mark Schmitz

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Insights on the Controls on Floodplain-Dominated Fluvial Successions: A Perspective from the Early–Middle Miocene Santa Cruz Formation in Río Chalía (Patagonia, Argentina), José I. Cuitiño, M. Sol Raigemborn, M. Susana Bargo, Sergio F. Vizcaíno, Nahuel A. Muñoz, Matthew J. Kohn, and Richard F. Kay

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Tunguska Сoals, Siberian Sills and the Permian-Triassic Extinction, V. I. Davydov

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The Influence of the Permian-Triassic Magmatism in the Tunguska Basin, Siberia on the Regional Floristic Biota of the Permian-Triassic Transition in the Region, V. I. Davydov and E. V. Karasev

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Climate and Biotic Evolution During the Permian-Triassic Transition in the Temperate Northern Hemisphere, Kuznetsk Basin, Siberia, Russia, V. I. Davydov and M. D. Schmitz

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Long-Lived (Ca. 22–24 Myr) Partial Melts in the Eastern Himalaya: Petrochronologic Constraints and Tectonic Implications, Huixia Ding, Matthew J. Kohn, and Zeming Zhang

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Timescales of Partial Melting and Melt Crystallization in the Eastern Himalayan Orogen: Insights from Zircon Petrochronology, Huxia Ding, Zeming Zhang, Matthew J. Kohn, and Zhenbin Gou

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Meta-Rodingite Dikes as Recorders of Subduction Zone Metamorphism and Serpentinite Dehydration: Voltri Ophiolite, Italy, Besim Dragovic

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A Detrital Zircon Test of Large-Scale Terrane Displacement Along the Arctic Margin of North America, Timothy M. Gibson, Karol Faehnrich, James F. Busch, William C. McClelland, Mark D. Schmitz, and Justin V. Strauss

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NASA's Surface Biology and Geology Designated Observable: A Perspective on Surface Imaging Algorithms, Nancy F. Glenn

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Performance of the Ecosystem Demography Model (EDv2.2) in Simulating Gross Primary Production Capacity and Activity in a Dryland Study Area, Nancy F. Glenn, Marie Anne de Graaff, and Alejandro Flores

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Assessing P‐T Variability in Mélange Blocks from the Catalina Schist: Is There Differential Movement at the Subduction Interface?, Kayleigh M. Harvey, Sarah C. Penniston-Dorland, Matthew J. Kohn, and Philip M. Piccoli

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A Mélange of Subduction Ages: Constraints on the Timescale of Shear Zone Development and Underplating at the Subduction Interface, Catalina Schist (CA, USA), K. M. Harvey, S. Walker, P. G. Starr, S. C. Penniston-Dorland, M. J. Kohn, and E. F. Baxter

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Cannibalization of a Late Cambrian Backarc in Southern Peru: New Insights into the Assembly of Southwestern Gondwana, Eben Blake Hodgin, Juan Carlos Gutiérrez-Marco, Jorge Colmenar, Francis A. Macdonald, Víctor Carlotto, James L. Crowley, and Justin R. Newmann

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Tree Canopy and Snow Depth Relationships at Fine Scales with Terrestrial Laser Scanning, Ahmed Hojatimalekshah, Zachary Uhlmann, Nancy F. Glenn, Jake D. Graham, Hans-Peter Marshall, James P. McNamara, and Josh Enterkine

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Snow Avalanche Detection and Source Constraints Made Using a Networked Array of Infrasound Sensors, J. B. Johnson, J. F. Anderson, H. P. Marshall, S. Havens, and L. M. Watson

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Unoccupied Aircraft Systems (UASs) Reveal the Morphological Changes at Stromboli Volcano (Italy) Before, Between, and After the 3 July and 28 August 2019 Paroxysmal Eruptions, Jeffrey B. Johnson

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Spatial Patterns and Drivers of Nonperennial Flow Regimes in the Contiguous United States, Kendra Kaiser

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Beyond Streamflow: Call for a National Data Repository of Streamflow Presence for Streams and Rivers in the United States, Kendra E. Kaiser

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Pervasive Changes in Stream Intermittency Across the United States, Kendra E. Kaiser

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Timescales of Impact Melt Sheet Crystallization and the Precise Age of the Morokweng Impact Structure, South Africa, Gavin G. Kenny, Claire O. Harrigan, Mark D. Schmitz, James L. Crowley, and Corey J. Wall

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Backarc Lithospheric Thickness and Serpentine Stability Control Slab-Mantle Coupling Depths in Subduction Zones, Buchanan C. Kerswell, Matthew J. Kohn, and Taras V. Gerya

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Stable Isotopes of Water Reveal Differences in Plant – Soil Water Relationships Across Northern Environments, Matthew J. Kohn and James P. McNamara

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The Miocene: The Future of the Past, M. J. Kohn

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New Petrographic and U–Pb Geochronology Data from the Mazagan Escarpment, Offshore Morocco: Support for an African Origin, Yvette D. Kuiper, André Michard, Etienne Ruellan, Christopher S. Holm-Denoma, and James L. Crowley

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(Re)proposal of Three Cambrian Subsystems and Their Geochronology, Ed Landing, Gerd Geyer, Mark D. Schmitz, Thomas Wotte, and Artem Kouchinsky

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Precise Early Cambrian U–Pb Zircon Dates Bracket the Oldest Trilobites and Archaeocyaths in Moroccan West Gondwana, Ed Landing, Mark D. Schmitz, Gerd Geyer, Robin B. Trayler, and Samuel A. Bowring

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The 31 March 2020 Mw 6.5 Stanley, Idaho, Earthquake: Seismotectonics and Preliminary Aftershock Analysis, Lee M. Liberty, Zachary M. Lifton, and T. Dylan Mikesell

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A Broad, Distributed Active Fault Zone Lies Beneath Salt Lake City, Utah, Lee M. Liberty, James St. Clair, and Adam P. McKean

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Resonant Frequency Derived from the Rayleigh‐Wave Dispersion Image: The High‐Impedance Boundary Problem, Lee M. Liberty, James St. Clair, T. Dylan Mikesell, and William D. Schermerhorn

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Observing Snow Depth at Sub-Kilometer Resolution Over the European Alps from Sentinel-1, Hans Lievens, Isis Brangers, Hans-Peter Marshall, Tobias Jones, Marc Olefs, and Gabriëlle De Lannoy

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Automated Detection of Marine Glacier Calving Fronts Using the 2-D Wavelet Transform Modulus Maxima Segmentation Method, Julia Liu, Ellyn M. Enderlin, Hans-Peter Marshall, and Andre Khalil

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Snow Ensemble Uncertainty Project (SEUP): Quantification of Snow Water Equivalent Uncertainty Across North America via Ensemble Land Surface Modeling, Hans-Peter Marshall

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Atmospheric Blocking Drives Recent Albedo Change Across the Western Greenland Ice Sheet Percolation Zone, Hans Peter Marshall and Tate Meehan

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L-Band InSAR Depth Retrieval During the NASA SnowEx 2020 Campaign: Grand Mesa, Colorado, H. P. Marshall, Elias Deeb, Rick Forster, Carrie Vuyovich, Kelly Elder, Chris Hiemstra, and Jewell Lund

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Faculty Self-Reported Use of Quantitative and Data Analysis Skills in Undergraduate Geoscience Courses, Rory R. McFadden, Karen Viskupic, and Anne E. Egger

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Trace Fossils, Algae, Invertebrate Remains and New U-Pb Detrital Zircon Geochronology from the Lower Cambrian Torneträsk Formation, Northern Sweden, Stephen McLoughlin, Vivi Vajda, Timothy P. Topper, James L. Crowley, Fan Liu, Ove Johansson, and Christian B. Skovsted

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Reconstruction of Historical Surface Mass Balance, 1984–2017 from GreenTraACS Multi-Offset Ground-Penetrating Radar, Tate G. Meehan and H.P. Marshall

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Provenance, Stratigraphic and Precise Depositional Age Constraints for an Outlier of the 1.9 to 1.8  Ga Nonacho Group, Rae Craton, Northwest Territories, Canada, Benjamin J. C. Neil, H. Daniel Gibson, Sally J. Pehrsson, Edith Martel, Eric J. Thiessen, and James L. Crowley

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Soil Structure and Soil Moisture Dynamics Inferred from Time-Lapse Electrical Resistivity Tomography, Travis Nielson, John Bradford, Jen Pierce, and Mark Seyfried

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Kinematics of the Exceptionally-Short Surge Cycles of Sít’ Kusá (Turner Glacier), Alaska, from 1983 to 2013, Andrew Nolan, William Kochtitzky, Ellyn M. Enderlin, Robert McNabb, and Karl J. Kreutz

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Autocorrelation Infrasound Interferometry, Hugo D. Ortiz, Robin S. Matoza, Jeffrey B. Johnson, Stephen Hernandez, Juan C. Anzieta, and Mario C. Ruiz

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Understanding the Effect of Fire on Vegetation Composition and Gross Primary Production in a Semi-Arid Shrubland Ecosystem Using the Ecosystem Demography (EDv2.2) Model, Karun Pandit, Hamid Dashti, Andrew T. Hudak, Nancy F. Glenn, Alejandro N. Flores, and Douglas J. Shinneman

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Topographically Moderated Soil Water Seasons Impact Vegetation Dynamics in Semiarid Mountain Catchments: Illustrations from the Dry Creek Experimental Watershed, Idaho, USA, Michael J. Poulos, Toni J. Smith, Shawn G. Benner, Jennifer L. Pierce, Alejandro N. Flores, Mark S. Seyfried, and James P. McNamara

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Petrogenesis of Pleistocene Basalts from the Western Snake River Plain, Idaho, Tiffany A. Rivera, Craig M. White, Mark D. Schmitz, and Brian R. Jicha

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The Impact of Initial Snow Conditions on the Numerical Weather Simulation of a Northern Rockies Atmospheric River, William Rudisill, Alejandro Flores, and James McNamara

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A Volcanic Tuff Near the Carboniferous–Permian Boundary, Taiyuan Formation, North China: Radioisotopic Dating and Global Correlation, Mark D. Schmitz, Hermann W. Pfefferkorn, Shu-Zhong Shen, and Jun Wang

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Silicate Melt Inclusions in the New Millennium: A Review of Recommended Practices for Preparation, Analysis, and Data Presentation, D. Schwartz

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Dating the Bushveld Complex: Timing of Crystallization, Duration of Magmatism, and Cooling of the World’s Largest Layered Intrusion and Related Rocks, James S. Scoates, Corey J. Wall, Richard M. Friedman, Dominique Weis, Edmond A. Mathez, and Jill A. VanTongeren

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Slope and Aspect Controls on Soil Climate: Field Documentation and Implications for Large-Scale Simulation of Critical Zone Processes, Mark Seyfried, Gerald Flerchinger, Sage Bryden, Tim Link, Danny Marks, and Jim McNamara

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Co-Evolution of Xylem Water and Soil Water Stable Isotopic Composition in a Northern Mixed Forest Biome, Jenna R. Snelgrove, James M. Buttle, Matthew J. Kohn, and Dörthe Tetzlaff

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Rapid Emplacement of Massive Duluth Complex Intrusions within the North American Midcontinent Rift, Nicholas L. Swanson-Hysell, Steven A. Hoaglund, James L. Crowley, Mark D. Schmitz, Yiming Zhang, and James D. Miller Jr.

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Volumetric Extrusive Rates of Silicic Supereruptions from the Afro-Arabian Large Igneous Province, Jennifer E. Thines, Ingrid A. Ukstins, Corey Wall, and Mark Schmitz

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Stick-Slip Tremor Beneath an Alpine Glacier, J. Umlauft, F. Lindner, P. Roux, T. D. Mikesell, M. M. Haney, M. Korn, and F. T. Walter

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Comparing Desired Workforce Skills and Reported Teaching Practices to Model Students’ Experiences in Undergraduate Geoscience Programs, Karen Viskupic, Anne E. Egger, Rory R. McFadden, and Mark D. Schmitz

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The Hera Orebody: A Complex Distal (Au–Zn–Pb–Ag–Cu) Skarn in the Cobar Basin of Central New South Wales, Australia, Corey Wall

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Integrating Zircon Trace-Element Geochemistry and High-Precision U-Pb Zircon Geochronology to Resolve the Timing and Petrogenesis of the Late Ediacaran–Cambrian Wichita Igneous Province, Southern Oklahoma Aulacogen, USA, Corey J. Wall, Richard E. Hanson, Mark Schmitz, Jonathan D. Price, R. Nowell Donovan, Joseph R. Boro, Amy M. Eschberger, and Chelsea E. Toews

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Middle Triassic Lake Deepening in the Ordos Basin of North China Linked with Global Sea-Level Rise, Corey J. Wall and Mark D. Schmitz

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A Link Between Rift-Related Volcanism and End-Ediacaran Extinction?: Integrated Chemostratigraphy, Biostratigraphy, and U-Pb Geochronology from Sonora, Mexico, Cory J. Wall and Mark D. Schmitz

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In Situ Determination of Dry and Wet Snow Permittivity: Improving Equations for Low Frequency Radar Applications, Ryan Webb, Adrian Marziliano, Daniel McGrath, Randall Bonnell, Tate G. Meehan, Carrie Vuyovich, and Hans-Peter Marshall

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Coupled Inversion of Hydraulic and Self-Potential Data from Transient Outflow Experiments to Estimate Soil Petrophysical Properties, Jing Xie, Yian Cui, and Qifei Niu

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Locating Surface Deformation Induced by Earthquakes Using GPS, GLONASS and Galileo Ionospheric Sounding from a Single Station, Florian Zedek, Lucie M. Rolland, T. Dylan Mikesell, Anthony Sladen, Bertrand Delouis, Cédric Twardzik, and Pierdavide Coïsson

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Synchronous Emplacement of the Anorthosite Xenolith-Bearing Beaver River Diabase and One of the Largest Lava Flows on Earth, Yiming Zhang, Nicholas L. Swanson-Hysell, Mark D. Schmitz, James D. Miller, and Margaret S. Avery

Submissions from 2020

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Evaluation of Iceberg Calving Models Against Observations from Greenland Outlet Glaciers, Tristan Amaral, Timothy C. Bartholomaus, and Ellyn M. Enderlin

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Characteristics of Thunder and Electromagnetic Pulses from Volcanic Lightning at Bogoslof Volcano, Alaska, Jacob Anderson and Jeffrey B. Johnson

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The Northern Termination of the Cache Creek Terrane in Yukon: Middle Triassic Arc Activity and Jurassic–Cretaceous Structural Imbrication, Luke Bickerton, Maurice Colpron, H. Daniel Gibson, Derek Thorkelson, and James L. Crowley

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Aquifer Imaging with Oscillatory Hydraulic Tomography: Application at the Field Scale, Michael Cardiff, YaoQuan Zhou, Warren Barrash, and Peter K. Kitanidis

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Future Evolution of Greenland's Marine-Terminating Outlet Glaciers, G. A. Catania, L. A. Stearns, T. A. Moon, E. M. Enderlin, and R. H. Jackson

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Dynamic Magma Storage at Near-Ridge Hot Spots: Evidence from New Galápagos Gravity Data, Z. Cleary, D. M. Schwartz, E. Mittelstaedt, and K. Harpp

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The Role of the Polochic Fault as Part of the North American and Caribbean Plate Boundary: Insights from the Infill of the Lake Izabal Basin, James L. Crowley

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Shift in the Paradigm for GSSP Boundary Definition, V. I. Davydov

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Radioisotopic and Biostratigraphic Constraints on the Classical Middle–Upper Permian Succession and Tetrapod Fauna of the Moscow Syneclise, Russia, V. I. Davydov and M. D. Schmitz

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Joint Inversion of Full-Waveform Ground-Penetrating Radar and Electrical Resistivity Data: Part 1, Diego Domenzain, John Bradford, and Jodi Mead

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Joint Inversion of Full-Waveform Ground-Penetrating Radar and Electrical Resistivity Data — Part 2: Enhancing Low Frequencies with the Envelope Transform and Cross Gradients, Diego Domenzain, John Bradford, and Jodi Mead

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Petrochronological Close-Up on the Thermal Structure of a Paleo-Subduction Zone (W. Alps), Besim Dragovic, Samuel Angiboust, and Michael J. Tappa

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The Interpretability of Stable Hydrogen Isotopes in Modern Herbivore Tooth Enamel, Amanda E. Drewicz, Robin B. Trayler, Mariah E. Holloway, Claire O. Harrigan, and Matthew J. Kohn

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Analysis of Antarctic Peninsula Glacier Frontal Ablation Rates with Respect to Iceberg Melt-Inferred Variability in Ocean Conditions, M. C. Dryak and E. M. Enderlin

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Climate and Surging of Donjek Glacier, Yukon, Canada, Ellyn M. Enderlin

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Sharp Contrasts in Observed and Modeled Crevasse Patterns at Greenland’s Marine Terminating Glaciers, Ellyn M. Enderlin and Timothy C. Bartholomaus

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Basaltic Phreatomagmatic Fissure at 71 Gulch Part 2: Unusual Pyroclasts from Sediment Magma Mingling and Melting, Alison Graettinger, K. L. Bennis, B. Brand, E. Reynolds, and Joseph Nolan

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Characterizing Peatland Microtopography Using Gradient and Microform-Based Approaches, Jake D. Graham, Nancy F. Glenn, Lucas P. Spaete, and Paul J. Hanson

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Orogenic Link ∼41°N–46°N: Collisional Mountain Building and Basin Closure in the Cordillera of Western North America, Keith D. Gray, V. Isakson, D. Schwartz, and Jeffrey D. Vervoort

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Pyrite: Fool’s Gold Records Starvation of Bacteria, Daniel David Gregory and Matthew J. Kohn

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High-Velocity Surface Layer Effects on Rayleigh Waves: Recommendations for Improved Shear-Wave Velocity Modeling, Gabriel Gribler, Lee M. Liberty, and T. Dylan Mikesell

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Co-Eruptive Tremor from Bogoslof Volcano: Seismic Wavefield Composition at Regional Distances, Matthew M. Haney, David Fee, Kathleen F. McKee, John J. Lyons, Robin S. Matoza, Aaron G. Wech, Gabrielle Tepp, Cheryl Searcy, and T. Dylan Mikesell

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Stable Isotope Compositions of Herbivore Teeth Indicate Climatic Stability Leading into the Mid-Miocene Climatic Optimum, in Idaho, U.S.A, Elisha B. Harris, Matthew J. Kohn, and Caroline A. E. Strömberg

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From Drought to Flood: A Water Balance Analysis of the Tuolumne River Basin During Extreme Conditions (2015–2017), Andrew R. Hedrick, Danny Marks, Hans-Peter Marshall, James McNamara, Scott Havens, and Ernesto Trujillo

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Constructing a Time Scale of Biotic Recovery Across the Cretaceous–Paleogene Boundary, Corral Bluffs, Denver Basin, Colorado, U.S.A., Vincent Isakson and Mark D. Schmitz

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Mapping the Sources of Proximal Earthquake Infrasound, J. B. Johnson, T. D. Mikesell, J. F. Anderson, and L. M. Liberty

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Janus: A Python Package for Agent-Based Modeling of Land Use and Land Cover Change, K. E. Kaiser, A. N. Flores, and C. R. Vernon

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Zero or Not?: Causes and Consequences of Zero-Flow Stream Gage Readings, Kendra E. Kaiser

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Identifying Emergent Agent Types and Effective Practices for Portability, Scalability, and Intercomparison in Water Resource Agent-Based Models, Kendra E. Kaiser, Alejandro N. Flores, and Vicken Hillis

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A Refined Zirconium-in-Rutile Thermometer, Matthew J. Kohn

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Applications of Raman Spectroscopy in Metamorphic Petrology and Tectonics, Andrey V. Korsakov, Matthew J. Kohn, and Maria Perraki

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Carmacks Copper Cu-Au-Ag Deposit: Mineralization and Postore Migmatization of a Stikine Arc Porphyry Copper System in Yukon, Canada, Nikolett Kovacs, Murray M. Allan, James L. Crowley, Maurice Colpron, Craig J. R. Hart, Alex Zagorevski, and Robert A. Creaser

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Ductile Nappe Extrusion in Constrictive Strain at the Origin of Transverse Segments of the Allochthon Boundary Thrust in the Manicouagan Imbricate Zone (Central Grenville Province, Québec), Gaëlle Labat, Félix Gervais, Charles Kavanagh-Lepage, Sophie Jannin, and James L. Crowley

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Constraints on the Shallow Deformation Around the Main Frontal Thrust in Central Nepal from Refraction Velocities, Yixiang Liu, Judith Hubbard, Rafael V. Almeida, Anna Foster, Lee Liberty, Ying Sin Lee, and Soma Nath Sapkota

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Distributed Ductile Thinning During Thrust Emplacement: A Commonly Overlooked Exhumation Mechanism, Sean P. Long and Matthew J. Kohn

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Thermometry and Microstructural Analysis Imply Protracted Extensional Exhumation of the Tso Morari UHP Nappe, Northwestern Himalaya: Implications for Models of UHP Exhumation, Sean P. Long, Matthew J. Kohn, Buchanan C. Kerswell, Jesslyn K. Starnes, Kyle P. Larson, Nolan R. Blackford, and Emmanuel Soignard

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Mapping Snowmelt Progression in the Upper Indus Basin with Synthetic Aperture Radar, Jewell Lund, Richard R. Forster, Summer B. Rupper, Elias J. Deeb, H.P. Marshall, Muhammad Zia Hashmi, and Evan Burgess

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Does Updating Natural Hazard Maps to Reflect Best Practices Increase Viewer Comprehension of Risk?, Carson C. MacPherson-Krutsky, Brittany D. Brand, and Michael K. Lindell

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Within‐Stand Boundary Effects on Snow Water Equivalent Distribution in Forested Areas, H.P. Marshall

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Contrasting Storage-Flux-Age Interactions Revealed by Catchment Inter-Comparison Using a Tracer-Aided Runoff Model, J. McNamara

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Geology of the Acropolis Prospect, South Australia, Constrained by High-Precision CA-TIMS Ages, J. McPhie, K. J. Ehrig, M. B. Kamenetsky, J. L. Crowley, and V. S. Kamenetsky

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Upper Permian and Lower Triassic Conodonts, High-Precision U-Pb Zircon Ages and the Permian-Triassic Boundary in the Malay Peninsula, I. Metcalfe and J. L. Crowley

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Asynchronous Trilobite Extinctions at the Early to Middle Cambrian Transition, M. T. Mohr and M. D. Schmitz

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Redefining the Tonto Group of Grand Canyon and Recalibrating the Cambrian Time Scale, M. T. Mohr and M. D. Schmitz

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Fourier Shape Analysis, FSA: Freeware for Quantitative Study of Particle Morphology, G. Moreno Chávez, F. Castillo-Rivera, J. A. Montenegro-Ríos, L. Borselli, L. A. Rodríguez-Sedano, and D. Sarocchi

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Geochronological Constraints on Neoproterozoic Rifting and Onset of the Marinoan Glaciation from the Kingston Peak Formation in Death Valley, California (USA), Lyle L. Nelson, Emily F. Smith, Eben B. Hodgin, James L. Crowley, Mark D. Schmitz, and Francis A. Macdonald

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A Framework for Pore‐Scale Simulation of Effective Electrical Conductivity and Permittivity of Porous Media in the Frequency Range From 1 mHz to 1 GHz, Qifei Niu, Chi Zhang, and Manika Prasad

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Li Isotope Zoning in Garnet from Franciscan Eclogite and Amphibolite: The Role of Subduction-Related Fluids, Sarah C. Penniston-Dorland, Lukas P. Baumgartner, Besim Dragovic, and Anne-Sophie Bouvier

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Timing of Deformation Along the Iron Springs Thrust, Southern Sevier Fold-and-Thrust Belt, Utah: Evidence for an Extensive Thrusting Event in the Mid-Cretaceous, J. Daniel Quick, John P. Hogan, Michael Wizevich, Jonathan Orbist-Farmer, and James L. Crowley

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Motivators and Inhibitors to Change: Why and How Geoscience Faculty Modify Their Course Content and Teaching Methods, Catherine A. Riihimaki and Karen Viskupic

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Spatial and Temporal Changes in Aeolian Redistribution of Sediments and Nutrients Following Fire, Clayton Roehner, Jennifer L. Pierce, and Elowyn M. Yager

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Monogenetic Near‐Island Seamounts in the Galápagos Archipelago, D. M. Schwartz, V. D. Wanless, S. A. Soule, M. D. Schmitz, and M. D. Kurz

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Caught in the Act: A Case Study on Microscopic Scale Physicochemical Effects of Fossilization on Stable Isotopic Composition of Bone, Celina A. Suarez and Matthew J. Kohn

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Avalonian Arc-to-Platform Transition in Southeastern New England: U-Pb Geochronology and Stratigraphy of Ediacaran Cambridge “Argillite,” Boston Basin, Massachusetts, USA, Margaret D. Thompson and James L. Crowley

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Hydraulic Tomography: 3D Hydraulic Conductivity, Fracture Network, and Connectivity in Mudstone, Claire R. Tiedeman and Warren Barrash

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Patagonian Aridification at the Onset of the Mid‐Miocene Climatic Optimum, Robin B. Trayler, Matthew J. Kohn, M. Susana Bargo, José I. Cuitiño, Richard F. Kay, Caroline A. E. Strömberg, and Sergio F. Vizcaíno

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An Improved Approach to Age-Modeling in Deep Time: Implications for the Santa Cruz Formation, Argentina, Robin B. Trayler, Mark D. Schmitz, and Matthew J. Kohn

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Interaction of Wind and Cold-Season Hydrologic Processes on Erosion from Complex Topography Following Wildfire in Sagebrush Steppe, Samantha P. Vega, C. Jason Williams, Erin S. Brooks, Frederick B. Pierson, Eva K. Strand, Peter R. Robichaud, Robert E. Brown, Mark S. Seyfried, Kathleen A. Lohse, Kayla Glossner, Jennifer L. Pierce, and Clay Roehner

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Changes in Crater Geometry Revealed by Inversion of Harmonic Infrasound Observations: 24 December 2018 Eruption of Mount Etna, Italy, Leighton M. Watson, Jeffrey B. Johnson, Mariangela Sciotto, and Andrea Cannata

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Analyzing Continuous Infrasound from Stromboli Volcano, Italy Using Unsupervised Machine Learning, Alex J. C. Witsil and Jeffrey B. Johnson

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Volcano Video Data Characterized and Classified Using Computer Vision and Machine Learning Algorithms, Alex J. C. Witsil and Jeffrey B. Johnson

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Rayleigh-Wave Multicomponent Crosscorrelation-Based Source Strength Distribution Inversions. Part 2: A Workflow for Field Seismic Data, Zongbo Xu, T. Dylan Mikesell, Josefine Umlauft, and Gabriel Gribler

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Early Triassic Conchostracans from the Tiryakh-Kobyume Section (Southern Verkhoyansk Region, Republic of Sakha (Yakutia)), V. V. Zharinova, F. Scholze, V. I. Davydov, and R. V. Kutygin

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UAS-Based Tracking of the Santiaguito Lava Dome, Guatemala, Edgar U. Zorn, Thomas R. Walter, Jeffrey B. Johnson, and René Mania

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Decoding Pyroclastic Density Current Flow Direction and Shear Conditions in the Flow Boundary Zone via Particle-Fabric Analysis, P.J. Zrelak, Nicholas M. Pollock, Brittany D. Brand, Damiano Sarocchi, and Trevor Hawkins

Submissions from 2019

The Gishe Expedition, Warren Barrash

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The Community Outreach Model of Service-Learning: A Case Study of Active Learning and Service-Learning in a Natural Hazards, Vulnerability, and Risk Class, Brittany D. Brand, Kara Brascia, and Margaret Sass

Map Your Hazards!": Assessing Hazards, Vulnerability, and Risk Through an Active Learning-Based Educational Module, Brittany D. Brand, Melissa Schlege, and Pamela McMullin-Messier

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Fluid Capture During Exhumation of Subducted Lithologies: A Fluid Inclusion Study from Sifnos, Greece, Hanna L. Brooks, Besim Dragovic, Héctor M. Lamadrid, Mark J. Caddick, and Robert J. Bodnar

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Detrital Zircon U–Pb Geochronology Constrains the Age of Brazilian Neogene Deposits from Western Amazonia, James L. Crowley

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Regional Scale Dryland Vegetation Classification with an Integrated Lidar-Hyperspectral Approach, Hamid Dashti, Nancy F. Glenn, Nayani Ilangakoon, Josh Enterkine, and Alejandro N. Flores

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Empirical Methods for Remote Sensing of Nitrogen in Drylands May Lead to Unreliable Interpretation of Ecosystem Function, Hamid Dashti, Nancy F. Glenn, Nayani T. Ilangakoon, Alejandro N. Flores, and Marie-Anne de Graaff

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High-Precision Radioisotopic Ages for the Lower Midian (Upper Wordian) Stage of the Tethyan Time Scale, Shigeyasu Quarry, Yamaguchi Prefecture, Japan, V. I. Davydov and M. D. Schmitz

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Late Permian and Early Triassic Conchostracans from the Babii Kamen Section (Kuznetsk Coal Basin), V. I. Davydov, V. V. Zharinova, and V. V. Silantiev

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The Alleghanian Isthmus as the Trigger of the Onset of the Bashkirian Glaciation: Constraints from Warm-Water Benthic Foraminifera, Vladimir I. Davydov and Pedro Cózar

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Partitioned by Process: Measuring Post-Fire Debris-Flow and Rill Erosion with Structure from Motion Photogrammetry, Nicholas G. Ellett, Jennifer L. Pierce, and Nancy F. Glenn

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Reconstructing a Snake River Plain ‘Super-Eruption’ via Compositional Fingerprinting and High-Precision U/Pb Zircon Geochronology, B. S. Ellis, M. D. Schmitz, and M. Hill

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Leveraging Environmental Research and Observation Networks to Advance Soil Carbon Science, Alejandro N. Flores

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Hillslope Hydrology in Global Change Research and Earth System Modeling, A. Flores and J. McNamara

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Bulk Density Optimization to Determine Subsurface Hydraulic Properties in Rocky Mountain Catchments Using the GEOtop Model, Andrew T. Fullhart, Thijs J. Kelleners, Dave G. Chandler, James P. McNamara, and Mark S. Seyfried

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Methods to Isolate Retrograde and Prograde Rayleigh-Wave Signals, Gabriel Gribler and T. Dylan Mikesell

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Including Variability Across Climate Change Projections in Assessing Impacts on Water Resources in an Intensively Managed Landscape, Bangshuai Han, Shawn G. Benner, and Alejandro N. Flores

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Approximating Input Data to a Snowmelt Model Using Weather Research and Forecasting Model Outputs in Lieu of Meteorological Measurements, Scott Havens, Danny Marks, Katelyn FitzGerald, Matt Masarik, Alejandro N. Flores, Patrick Kormos, and Andrew Hedrick

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Accretion and Oxidation of a Superfast-Spread Axial Melt Lens: TIMS and SIMS Zircon Analyses of the IODP Hole 1256D Gabbros, Nicholas W. Hayman, Matthew Rioux, Ryo Anma, Kenichiro Tani, Daniel J. Dunkley, Jim Crowley, and Mark Schmitz

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Exploring the Law of Detrital Zircon: LA-ICP-MS and CA-TIMS Geochronology of Jurassic Forearc Strata, Cook Inlet, Alaska, USA, Trystan M. Herriott, James L. Crowley, Mark D. Schmitz, Marwan A. Wartes, and Robert J. Gillis

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New Insights on the Orosirian Carbon Cycle, Early Cyanobacteria, and the Assembly of Laurentia from the Paleoproterozoic Belcher Group, Malcom S. W. Hodgskiss, Olivia M. J. Dagnaud, Jamie L. Frost, Galen P. Halverson, Mark D. Schmitz, Nicholas L. Swanson-Hysell, and Erik A. Sperling

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Probability of Streamflow Permanence Model (Prosper): A Spatially Continuous Model of Annual Streamflow Permanence Throughout the Pacific Northwest, K. E. Kaiser

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Crevasse Initiation and History within the McMurdo Shear Zone, Antarctica, Lynn Kaluzienski, Peter Koons, Ellyn Enderlin, Gordon Hamilton, Zoe Courville, and Steven Arcone

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Terminus Advance, Kinematics and Mass Redistribution During Eight Surges of Donjek Glacier, St. Elias Range, Canada, 1935 to 2016, William Kochtitzky, Hester Jiskoot, Luke Copland, Ellyn Enderlin, Robert McNabb, Karl Kreutz, and Brittany Main

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Tsunamigenic Splay Faults Imply a Long‐Term Asperity in Southern Prince William Sound, Alaska, L. M. Liberty, D. S. Brothers, and P. J. Haeussler

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Examining the Tectono-Stratigraphic Architecture, Structural Geometry, and Kinematic Evolution of the Himalayan Fold-Thrust Belt, Kumaun, Northwest India, Subhadip Mandal, Delores M. Robinson, Matthew J. Kohn, Subodha Khanal, and Oindrila Das

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Snow Depth Variability in the Northern Hemisphere Mountains Observed from Space, Hans-Peter Marshall

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Spatially Extensive Ground‐Penetrating Radar Snow Depth Observations During NASA's 2017 SnowEx Campaign: Comparison with in situ, Airborne, and Satellite Observations, Hans-Peter Marshall

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Recent Precipitation Decrease Across the Western Greenland Ice Sheet Percolation Zone, Hans-Peter Marshall and Tate Meehan

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Climate-Phenology-Hydrology Interactions in Northern High Latitudes: Assessing the Value of Remote Sensing Data in Catchment Ecohydrological Studies, James P. McNamara

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Snow Micro Penetrometer Applications for Winter Vehicle Mobility, T. Meehan, H.-P. Marshall, E. Deeb, and S. Shoop

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IonoSeis: A Package to Model Coseismic Ionospheric Disturbances, Thomas Dylan Mikesell, Lucie Rolland, Rebekah F. Lee, Florian Zedek, Pierdavide Coïsson, and Jean-Xavier Dessa

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How Spatiotemporal Variation of Soil Moisture Can Explain Hydrological Connectivity of Infiltration-Excess Dominated Hillslope: Observations from Lesser Himalayan Landscape, Aliva Nanda, Sumit Sen, and James P. McNamara

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Investigation of the Geographic Origin of Burrowing Owl Fleas with Implications for the Ecology of Plague, Kara A. Navock, David H. Johnson, Samantha Evans, Matthew J. Kohn, and James R. Belthoff

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Permeability Prediction in Rocks Experiencing Mineral Precipitation and Dissolution: A Numerical Study, Qifei Niu and Chi Zhang

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Multi-Proxy Constraints on the Significance of Covariant δ13C Values in Carbonate and Organic Carbon During the Early Mississippian, Amanda M. Oehlert, Peter K. Swart, Gregor P. Eberli, Samantha Evans, and Tracy D. Frank

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Developing and Optimizing Shrub Parameters Representing Sagebrush (Artemisia spp.) Ecosystems in the Northern Great Basin Using the Ecosystem Demography (EDv2.2) Model, Karun Pandit, Hamid Dashti, Nancy F. Glenn, and Alejandro N. Flores

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Lithology and Coarse Fraction Adjusted Bulk Density Estimates for Determining Total Organic Carbon Stocks in Dryland Soils, Nicholas R. Patton, Kathleen A. Lohse, Mark Seyfried, Ryan Will, and Shawn G. Benner

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Inferring Pyroclastic Density Current Flow Conditions Using Syn-Depositional Sedimentary Structures, Nicholas M. Pollock, Brittany D. Brand, Peter J. Rowley, Damiano Sarocchi, and Roberto Sulpizio

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Nitrous Oxide from Streams and Rivers: A Review of Primary Biogeochemical Pathways and Environmental Variables, Annika M. Quick, W. Jeffery Reeder, Tiffany B. Farrell, Daniele Tonina, Kevin P. Feris, and Shawn G. Benner

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Forearc Ages Reveal Extensive Short-Lived and Rapid Seafloor Spreading Following Subduction Initiation, Mark K. Reagan, Daniel E. Heaton, Mark D. Schmitz, Julian A. Pearce, John W. Shervais, and Anthony A. P. Koppers

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A Multi-Model Nonstationary Rainfall-Runoff Modeling Framework: Analysis and Toolbox, Mojtaba Sadegh, Amir AghaKouchak, Alejandro Flores, Iman Mallakpour, and Mohammad Reza Nikoo

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First-Order Estimates of Coastal Bathymetry in Ilulissat and Naajarsuit Fjords, Greenland, from Remotely Sensed Iceberg Observations, Jessica Scheick, Ellyn M. Enderlin, Emily E. Miller, and Gordon Hamilton

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Terrestrial and Marginal-Marine Record of the Mid-Cretaceous Oceanic Anoxic Event 2 (OAE 2): High-Resolution Framework, Carbon Isotopes, CO2 and Sea-Level Change, Mark Schmitz

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Interhemispheric Radio-Astrochronological Calibration of the Time Scales from the Andean and the Tethyan Areas in the Valanginian–Hauterivian (Early Cretaceous), Mark D. Schmitz

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‘The Stillwater Complex: Integrating Zircon Geochronological and Geochemical Constraints on the Age, Emplacement History and Crystallization of a Large, Open-system Layered Intrusion’: A Reply to the Comment by Rais Latypov on Wall et al. (J. Petrology, 59, 153–190, 2018), James S. Scoates, Corey J. Wall, Dominique Weis, Richard M. Friedman, Marghaleray Amini, and William P. Meurer

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AdaptLidarTools: A Full-Waveform Lidar Processing Suite, Ravi Shankar, Nayani Ilangakoon, Aaron Orenstein, Floriana Ciaglia, Nancy F. Glenn, and Catherine Olschanowsky

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Comparing Aerial Lidar Observations with Terrestrial Lidar and Snow-Probe Transects from NASA's 2017 SnowEx Campaign, Zach Uhlmann, Lucas Spaete, and Nancy F. Glenn

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Applying Cloud-Based Computing and Emerging Remote Sensing Technologies to Inform Land Management Decisions, Monica Vermillion, Josh Enterkine, Lucas Spaete, and Nancy Glenn

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Noble Gas Systematics in New Popping Rocks from the Mid-Atlantic Ridge (14°N): Evidence for Small-Scale Upper Mantle Heterogeneities, V. Dorsey Wanless

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New Constraints on Mantle Carbon from Mid-Atlantic Ridge Popping Rocks, V. D. Wanless and D. M. Schwartz

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Simulation and Inversion of Harmonic Infrasound From Open-Vent Volcanoes Using an Efficient Quasi-1D Crater Model, Leighton M. Watson, Eric M. Dunham, and Jeffrey B. Johnson

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MELPF Version 1: Modeling Error Learning Based Post-Processor Framework for Hydrologic Models Accuracy Improvement, Rui Wu, Lei Yang, Chao Chen, Sajjad Ahmad, Sergiu M. Dascalu, and Frederick C. Harris Jr.

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Rayleigh-Wave Multicomponent Cross-Correlation-Based Source Strength Distribution Inversion. Part 1: Theory and Numerical Examples, Zongbo Xu, T. Dylan Mikesell, Gabriel Gribler, and Aurélien Mordret

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Examining Interactions Between and Among Predictors of Net Ecosystem Exchange: A Machine Learning Approach in a Semi-Arid Landscape, Qingtao Zhou, Aaron Fellows, Gerald N. Flerchinger, and Alejandro N. Flores

Submissions from 2018

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Seismic Imaging of the Main Frontal Thrust in Nepal Reveals a Shallow Décollement and Blind Thrusting, Rafael V. Almeida, Judith Hubbard, Lee Liberty, Anna Foster, and Soma Nath Sapkota

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The Gem Infrasound Logger and Custom‐Built Instrumentation, Jacob F. Anderson, Jeffrey B. Johnson, Daniel C. Bowman, and Timothy J. Ronan

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Diverse Eruptive Activity Revealed by Acoustic and Electromagnetic Observations of the 14 July 2013 Intense Vulcanian Eruption of Tungurahua Volcano, Ecuador, J. F. Anderson, J. B. Johnson, A. L. Steele, M. C. Ruiz, and B. D. Brand

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Submarine Deep-Water Lava Flows at the Base of the Western Galápagos Platform, Molly Anderson, V. Dorsey Wanless, Darin M. Schwartz, Emma McCully, Daniel J. Fornari, Meghan R. Jones, and S. Adam Soule

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Steering Operational Synergies in Terrestrial Observation Networks: Opportunity for Advancing Earth System Dynamics Modelling, Roland Baatz, Pamela L. Sullivan, Li Li, Samantha R. Weintraub, Henry W. Loescher, Michael Mirtl, Peter M. Groffman, Diana H. Wall, Michael Young, Tim White, Hang Wen, Steffen Zacharias, Ingolf Kühn, Jianwu Tang, Jérôme Gaillardet, Isabelle Braud, Alejandro N. Flores, Praveen Kumar, Henry Lin, Teamrat Ghezzehei, Julia Jones, Henry L. Gholz, Harry Vereecken, and Kris Van Looy

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Examining the Interior of Llaima Volcano with Receiver Functions, J. W. Bishop, J. M. Lees, C. B. Biryol, T. D. Mikesell, and L. Franco

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Reverse-Time Migration from Rugged Topography to Image Ground-Penetrating Radar Data in Complex Environments, John H. Bradford, Janna Privette, David Wilkins, and Richard Ford

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Lava, Ash Flows, Mudslides and Nasty Gases: Good Reasons to Respect Volcanoes, Brittany Brand

Shallow S‐Wave Velocity Structure from Ambient Seismic Noise at Planchón‐Peteroa Volcanic Complex, Argentina‐Chile, José Augusto Casas, T. D. Mikesell, D. Draganov, S. Lepore, G. A. Badi, L. Franco, and M. Gómez

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Coupled Lu–Hf and Sm–Nd Geochronology on a Single Eclogitic Garnet from the Huwan Shear Zone, China, Hao Cheng, Jeffrey D. Vervoort, Besim Dragovic, Diane Wilford, and Lingmin Zhang

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Precise Geochronological Constraints on the Origin, Setting and Incorporation of ca. 1.59 Ga Surficial Facies into the Olympic Dam Breccia Complex, South Australia, Alexander R. Cherry, Kathy Ehrig, Vadim S. Kamenetsky, Jocelyn McPhie, James L. Crowley, and Maya B. Kamenetsky

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Strain Variations Across the Proterozoic Penokean Orogen, USA and Canada, John P. Craddock, David H. Malone, Mark D. Schmitz, and Jennifer N. Gifford

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A Sedimentary Overlap Assemblage Links Australia to Northwestern Laurentia at 1.6 Ga, J. Crowley

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Early Cambrian Chronostratigraphy and Geochronology of South Australia, James L. Crowley

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Analyzing Spatiotemporal Patterns of Urbanization in Treasure Valley, Idaho, USA, Khila R. Dahal, Shawn Benner, and Eric Lindquist

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Radioisotopic Calibration of the Guadalupian (Middle Permian) Series: Review and Updates, V. I. Davydov, A. S. Biakov, M. D. Schmitz, and V. V. Silantiev

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New U–Pb Constraints Identify the End-Guadalupian and Possibly End-Lopingian Extinction Events Conceivably Preserved in the Passive Margin of North America: Implication for Regional Tectonics, V. I. Davydov, J. L. Crowley, M. D. Schmitz, and W. S. Snyder

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Precaspian Isthmus Emergence Triggered the Early Sakmarian Glaciation (Paleontologic, Sedimentologic and Geochemical Proxies), Vladimir I. Davydov

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Fluid Production Rate During the Regional Metamorphism of a Pelitic Schist, Besim Dragovic

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Stable Isotopes in Large Herbivore Tooth Enamel Capture a Mid-Miocene Precipitation Spike in the Interior Pacific Northwest, Amanda E. Drewicz and Matthew J. Kohn

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One Diamictite and Two Rifts: Stratigraphy and Geochronology of the Gataga Mountain of Northern British Columbia, Athena Eyster, Filippo Ferri, Mark D. Schmitz, and Francis A. Macdonald

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Assessment of Ground-Based and Aerial Cloud Seeding Using Trace Chemistry, James M. Fisher, Marion L. Lytle, and Shawn G. Benner

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Water Flow Modeling with Dry Bulk Density Optimization to Determine Hydraulic Properties in Mountain Soils, A. T. Fullhart, T. J. Kelleners, D. G. Chandler, J. P. McNamara, and M. S. Seyfried

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Estimation of Porosity and Water Saturation in Dual-Porosity Pyroclastic Deposits from Joint Analysis of Compression, Shear, and Electromagnetic Velocities, Andrew C. Gase, John H. Bradford, and Brittany D. Brand

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Estimating Vegetation Biomass and Cover Across Large Plots in Shrub and Grass Dominated Drylands Using Terrestrial Lidar and Machine Learning, Nancy Glenn and Lucas P. Spaete

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Evaluation of the Snow Penetrometer Avatech SP2, Pascal Hagenmuller, Alec van Herwijnen, Christine Pielmeier, and Hans-Peter Marshall

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Direct Insertion of NASA Airborne Snow Observatory-Derived Snow Depth Time Series Into the iSnobal Energy Balance Snow Model, Andrew R. Hedrick and Hans-Peter Marshall

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Constraining Plant Functional Types in a Semi-Arid Ecosystem with Waveform Lidar, Nayani T. Ilangakoon, Nancy F. Glenn, Hamid Dashti, T. Dylan Mikesell, Lucas P. Spaete, and Kyle Shannon

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South Australian U-Pb Zircon (CA-ID-TIMS) Age Supports Globally Synchronous Sturtian Deglaciation, Vincent Isakson and Mark D. Schmitz

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Déformations Tardi-Grenvilliennes dans la Ceinture Parautochtone (Province de Grenville Centrale): Contraintes Géochronologiques par Couplage de Méthodes U–Pb de Haute Résolution Spatiale et de Haute Précision, Sophie Jannin, Félix Gervais, Abdelali Moukhsil, Lars Eiving Augland, and James L. Crowley

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Astronomical Forcing of Carboniferous Paralic Sedimentary Cycles in the Upper Silesian Basin, Czech Republic (Serpukhovian, Latest Mississippian): New Radiometric Ages Afford an Astronomical Age Model for European Biozonations and Substages, Jakub Jirásek, Stanislav Opluštil, Martin Sivek, Mark D. Schmitz, and Hemmo A. Abels

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The Radioisotopically Constrained Viséan Onset of Turbidites in the Moravian‑Silesian Part of the Rhenohercynian Foreland Basin (Central European Variscides), Jakub Jirásek, Jiří Otava, Dalibor Matýsek, Martin Sivek, and Mark D. Schmitz

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Single-Station Seismo-Acoustic Monitoring of Nyiragongo's Lava Lake Activity (D.R. Congo), Jeffrey B. Johnson

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Tephra from the 3 March 2015 Sustained Column Related to Explosive Lava Fountain Activity at Volcán Villarrica (Chile), Jeffrey B. Johnson

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Forecasting the Eruption of an Open‐Vent Volcano Using Resonant Infrasound Tones, Jeffrey B. Johnson, Leighton M. Watson, Jose L. Palma, Eric M. Dunham, and Jacob F. Anderson

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Nested Scales of Spatial and Temporal Variability of Soil Water Content Across a Semiarid Montane Catchment, Kendra E. Kaiser and Brian L. McGlynn

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Landscape Analysis of Soil Methane Flux Across Complex Terrain, Kendra E. Kaiser, Brian L. McGlynn, and John E. Dore

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Apatite: Following the Movements of Ancient Humans and Mastodons, Matthew J. Kohn

Paleoaltimetry: Geochemical and Thermodynamic Approaches, Matthew J. Kohn

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Shear Heating Reconciles Thermal Models with the Metamorphic Rock Record of Subduction, Matthew J. Kohn, Adrian E. Castro, Buchanan C. Kerswell, César R. Ranero, and Frank S. Spear

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Petrology and Geochronology of Metamorphic Zircon, Matthew J. Kohn and Nigel M. Kelly

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Seismo-Ionospheric Observations, Modeling, and Backprojection of the 2016 Kaikōura Earthquake, Rebekah F. Lee, Lucie M. Rolland, and T. Dylan Mikesell

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A Geophysical Characterization of the Structural Framework of the Camas Prairie Geothermal System, Southcentral Idaho, Lee Liberty

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Geothermal Play Fairway Analysis, Phase 3: A Provisional Conceptual Model of the Camas Prairie, Snake River Plain, Idaho, Lee M. Liberty

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A Ku-Band CMOS FMCW Radar Transceiver for Snowpack Remote Sensing, Hans-Peter Marshall

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Ice Core Records of West Greenland Melt and Climate Forcing, H.P. Marshall and T. Meehan

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Local, Regional, and Remote Seismo‐Acoustic Observations of the April 2015 VEI 4 Eruption of Calbuco Volcano, Chile, Robin S. Matoza, David Fee, David N. Green, Alexis Le Pichon, Julien Vergoz, Matthew M. Haney, T. Dylan Mikesell, Luis Franco, O. Alberto Valderrama, Megan R. Kelley, Kathleen McKee, and Lars Ceranna

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A New, High‐Precision CA-ID-TIMS Date for the ‘Kalkberg’ K‐Bentonite (Judds Falls Bentonite), Neo E. B. McAdams, Mark D. Schmitz, Mark A. Kleffner, Jaques Verniers, Thijs R. A. Vandenbroucke, James R. Ebert, and Bradley D. Cramer

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Interannual Snow Accumulation Variability on Glaciers Derived from Repeat, Spatially Extensive Ground-Penetrating Radar Surveys, Daniel McGrath, Louis Sass, Shad O'Neel, Chris McNeil, Salvatore G. Candela, Emily H. Baker, and Hans-Peter Marshall

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Eleven Years of Mountain Weather, Snow, Soil Moisture and Streamflow Data from the Rain–Snow Transition Zone – the Johnston Draw Catchment, Reynolds Creek Experimental Watershed and Critical Zone Observatory, USA, James P. McNamara

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Storage, Mixing, and Fluxes of Water in the Critical Zone Across Northern Environments Inferred by Stable Isotopes of Soil Water, James P. McNamara

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Form and Function Relationships Revealed by Long-Term Research in a Semiarid Mountain Catchment, James P. McNamara, Shawn G. Benner, Michael J. Poulos, Jennifer L. Pierce, Hans-Peter Marshall, Alejandro N. Flores, Nancy F. Glenn, and Pamella Aishlin

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FabricS: A User-Friendly, Complete and Robust Software for Particle Shape-Fabric Analysis, G. Moreno Chávez, F. Castillo Rivera, D. Sarocchi, L. Borselli, and L. A. Rodríguez-Sedano

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Early Ordovician CA-IDTIMS U–Pb Zircon Dating and Conodont Biostratigraphy, Canning Basin, Western Australia, L. S. Normore, Y. Y. Zhen, L. M. Dent, J. L. Crowley, I. G. Percival, and M. T. D. Wingate

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Using Infrasound Waves to Monitor Tropospheric Weather and Crater Morphology Changes at Volcán Tungurahua, Ecuador, Hugo D. Ortiz, Jeffrey B. Johnson, Patricio G. Ramón, and Mario C. Ruiz

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A Mélange of Subduction Temperatures: Evidence from Zr-in-Rutile Thermometry for Strengthening of the Subduction Interface, Sarah C. Penniston-Dorland, Matthew J. Kohn, and Philip M. Piccoli

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U–Pb Geochronology and Palynology from Lopingian (Upper Permian) Coal Measure Strata of the Galilee Basin, Queensland, Australia, L. J. Phillips, J. L. Crowley, D. J. Mantle, J. S. Esterle, R. S. Nicoll, J. L. McKellar, and A. Wheeler

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Which Way Do You Lean?: Using Slope Aspect Variations to Understand Critical Zone Processes and Feedbacks, Michael J. Poulos

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Alluvial Fan Depositional Records from North and South-Facing Catchments in Semi-Arid Montane Terrain, Michael J. Poulos and Jennifer L. Pierce

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Imaging Spectroscopic Analysis of Biochemical Traits for Shrub Species in Great Basin, USA, Yi Qi, Susan L. Ustin, and Nancy F. Glenn

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Hyporheic Source and Sink of Nitrous Oxide, W. Jeffery Reeder, Annika M. Quick, Tiffany B. Farrell, Shawn G. Benner, Kevin P. Feris, Alessandra Marzadri, and Daniele Tonina

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Spatial and Temporal Dynamics of Dissolved Oxygen Concentrations and Bioactivity in the Hyporheic Zone, W. Jeffery Reeder, Annika M. Quick, Tiffany B. Farrell, Shawn G. Benner, Kevin P. Feris, and Daniele Tonina

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Volcanism at 1.45 Ma within the Yellowstone Volcanic Field, United States, Tiffany A. Riviera, Ryan Furlong, Jaime Vincent, Stephanie Gardiner, Brian R. Jicha, Mark D. Schmitz, and Peter C. Lippert

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Evidence for Subtropical Warmth in the Canadian Arctic (Beaufort-Mackenzie, Northwest Territories, Canada) During the Early Eocene, Marie Salpin, Johann Schnyder, François Baudin, Guillaume Saun, Jean-Pierre Suc, Speranta-Maria Popescu, Séverine Fauquette, Lutz Reinhardt, Mark D. Schmitz, and Loïc Labrousse

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Cambrian Sauk Transgression in the Grand Canyon Region Redefined by Detrital Zircons, Mark Schmitz

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Coupled Re-Os and U-Pb Geochronology of the Tonian Chuar Group, Grand Canyon, Mark D. Schmitz

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Depositional Settings and Changing Composition of the Jambi Palaeoflora within the Permian Mengkarang Formation (Sumatra, Indonesia), Mark D. Schmitz

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Cryogenian of Yukon, Mark D. Schmitz and James L. Crowley

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Neoarchean and Paleoproterozoic Events in the Minnesota River Valley Subprovince, with Implications for Southern Superior Craton Evolution and Correlation, M. D. Schmitz, D. L. Southwick, M. E. Bickford, P. A. Mueller, and S. D. Samson

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Identification of Erosional Terraces on Seamounts: Implications for Interisland Connectivity and Subsidence in the Galápagos Archipelago, Darin M. Schwartz, S. Adam Soule, V. Dorsey Wanless, and Meghan R. Jones

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Petrogenesis of Alkalic Seamounts on the Galápagos Platform, Darin M. Schwartz, V. Dorsey Wanless, Rebecca Berg, and Marion L. Lytle

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Stochastic Modeling of Suspended Sediment Load in Alluvial Rivers, Shahab Aldin Shojaeezadeh, Mohammad Reza Nikoo, James P. McNamara, Amir AghaKouchak, and Mojtaba Sadegh

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Reappraisal of Emplacement Models for Himalayan External Crystalline Nappes: The Jajarkot Klippe, Western Nepal, Renaud Soucy La Roche, Laurent Godin, and James L. Crowley

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Climate Change and Curtailment: Evaluating Water Management Practices in the Context of Changing Runoff Regimes in a Snowmelt-Dominated Basin, Amy L. Steimke, Bangshuai Han, Jodi S. Brandt, and Alejandro N. Flores

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Revelation of Early Detection of Coseismic Ionospheric Perturbations in GPS-TEC from Realistic Modelling Approach: Case Study, Dhanya Thomas, Mala S. Bagiya, Poikayil Sukumaran Sunil, Lucie Rolland, Anakuzhikkal Sudarsanan Sunil, T. Dylan Mikesell, Srinivas Nayak, Subrahmanyam Mangalampalli, and Durbha Sai Ramesh

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Resolving the Influence of Forest-Canopy Structure on Snow Depth Distributions with Terrestrial Laser Scanning, Zach Uhlmann, Nancy F. Glenn, Lucas P. Spaete, Chris Hiemstra, Chris Tennant, and Jim McNamara

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Rifting of Western Laurentia at 1.38 Ga: The Hart River Sills of Yukon, Canada, Jacob Verbaas, Derek J. Thorkelson, Dejan Milidragovic, James L. Crowley, David Foster, H. Daniel Gibson, and Daniel D. Marshall

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A Temperature-Composition Framework for Crystallization of Fractionated Interstitial Melt in the Bushveld Complex from Trace Element Systematics of Zircon and Rutile, Thomas J. Ver Hoeve, James S. Scoates, Corey J. Wall, Dominique Weis, and Marghaleray Amini

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Evaluating Downhole Fractionation Corrections in LA-ICP-MS U-Pb Zircon Geochronology, Thomas J. Ver Hoeve, James S. Scoates, Corey J. Wall, Dominique Weis, and Marghaleray Amini

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Paleogene Sedimentation and Eurekan Deformation in the Stenkul Fiord Area of Southeastern Ellesmere Island (Canadian Arctic): Evidence for a Polyphase History, W. Von Gosen, L. Reinhardt, K. Piepjohn, and M. D. Schmitz

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Solving a Tuff Problem: Defining a Chronostratigraphic Framework for Middle to Upper Jurassic Nonmarine Strata in Eastern Australia Using Uranium–Lead Chemical Abrasion–Thermal Ionization Mass Spectrometry Zircon Dates, Carmine C. Wainman, Peter J. McCabe, and James L. Crowley

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GZ7 and GZ8 – Two Zircon Reference Materials for SIMS U-PbGeochronology, Corey J. Wall and Mark D. Schmitz

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The Stillwater Complex: Integrating Zircon Geochronological and Geochemical Constraints on the Age, Emplacement History and Crystallization of a Large, Open-System Layered Intrusion, Corey J. Wall, James S. Scoates, Dominique Weis, Richard M. Friedman, Marghaleray Amini, and William P. Meurer

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The Final Stages of Slip and Volcanism on an Oceanic Detachment Fault at 13°48′N, Mid-Atlantic Ridge, V. D. Wanless

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Vanadium Isotope Compositions of Mid-Ocean Ridge Lavas and Altered Oceanic Crust, V. Dorsey Wanless

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Infrasound Explosion and Coda Signal Investigated with Joint Analysis of Video at Mount Erebus, Antarctica, Alex J.C. Witsil and Jeffrey B. Johnson

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Geologic Framework of the Fang Hot Springs Area with Emphasis on Structure, Hydrology, and Geothermal Development, Chiang Mai Provence, Northern Thailand, Spencer H. Wood, Pichet Kaewsomwang, and Fongsaward Suvagondha Singharajwarapan

Submissions from 2017

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Modeling the Isotopic Evolution of Snowpack and Snowmelt: Testing a Spatially Distributed Parsimonious Approach, Pertti Ala-Aho, Doerthe Tetzlaff, James P. McNamara, and Hjalmar Laudon

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Using Isotopes to Constrain Water Flux and Age Estimates in Snow-Influenced Catchments Using the STARR (Spatially Distributed Tracer-Aided Rainfall–Runoff) Model, Pertti Ala-Aho, Doerthe Tetzlaff, James P. McNamara, Hjalmar Laudon, and Chris Soulsby

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Redox Controls on Arsenic Enrichment and Release from Aquifer Sediments in Central Yangtze River Basin, Shawn G. Benner

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Identifying Irrigated Areas in the Snake River Plain, Idaho: Evaluating Performance Across Composting Algorithms, Spectral Indices, and Sensors, Eric W. Chance, Kelly M. Cobourn, Valerie A. Thomas, Blaine C. Dawson, and Alejandro N. Flores

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Inference of Soil Hydrologic Parameters from Electronic Soil Moisture Records, David G. Chandler, Mark S. Seyfried, James P. McNamara, and Kyotaek Hwang

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Structure and Kinematic Evolution of the Duke River Fault, Southwestern Yukon, Rosie Cobbett, Steve Israel, Jim Mortensen, Nancy Joyce, and James Crowley

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Structure and Kinematic Evolution of the Duke River Fault, Southwestern Yukon, Rosie Cobbett, Steve Israel, Jim Mortensen, Nancy Joyce, and James Crowley

Volcanic Eruptions Repose, and Their Unrest, Precursors, and Timing, Committee on Improving Understanding of Volcanic Eruptions, Committee on Seismology and Geodynamics, Board on Earth Sciences and Resources, Division on Earth and Life Studies, and Jeffrey B. Johnson

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Household Preparedness Motivation in Lahar Hazard Zones: Assessing the Adoption of Preparedness Behaviors Among Laypeople and Response Professionals in Communities Downstream from Mount Baker and Glacier Peak (USA) Volcanoes, Kimberley A. Corwin, Brittany D. Brand, Monica L. Hubbard, and David M. Johnston

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Urban Hypotheses and Spatiotemporal Characterization of Urban Growth in the Treasure Valley of Idaho, USA, Khila R. Dahal, Shawn Benner, and Eric Lindquist

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Late Artinskian–Early Kungurian (Early Permian) Warming and Maximum Marine Flooding in the East Gondwana Interior Rift, Timor and Western Australia, and Comparisons Across East Gondwana, Vladimir I. Davydov

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Ultrafast Magmatic Buildup and Diversification to Produce Continental Crust During Subduction, Mihai N. Ducea, George W. Bergantz, James L. Crowley, and Juan Otamendi

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Significant Ages—An Introduction to Petrochronology, Martin Engi, Pierre Lanari, and Matthew J. Kohn

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Evidence of Erosional Self-Channelization of Pyroclastic Density Currents Revealed by Ground-Penetrating Radar Imaging at Mount St. Helens, Washington (USA), Andrew C. Gase, Brittany D. Brand, and John H. Bradford

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Prograde and Near-Peak Zircon Growth in a Migmatitic Pelitic Schist of the Southeastern Canadian Cordillera, Félix Gervais and James L. Crowley

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Regional Sensitivities of Seasonal Snowpack to Elevation, Aspect, and Vegetation Cover in Western North America, Nancy F. Glenn

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Methodological Considerations of Terrestrial Laser Scanning for Vegetation Monitoring in the Sagebrush Steppe, Nancy F. Glenn and Lucas P. Spaete

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Rapid High-T Decompression Recorded by Archean Granulites in the Northern Wyoming Province: Insights from Petrological Modelling, Victor E. Guevara, Mark J. Caddick, and Besim Dragovic

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Coupling Biophysical Processes and Water Rights To Simulate Spatially Distributed Water Use in an Intensively Managed Hydrologic System, Bangshuai Han, Shawn G. Benner, John P. Bolte, Kellie B. Vache, and Alejandro N. Flores

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Bridging the Gap Between the Foreland and Hinterland I: Geochronology and Plate Tectonic Geometry of Ordovician Magmatism and Terrane Accretion on the Laurentian Margin of New England, Paul M. Karabinos, Francis A. Macdonald, and James L. Crowley

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Titanite Petrochronology, Matthew J. Kohn

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Diffusion: Obstacles and Opportunities in Petrochronology, Matthew J. Kohn and Sarah C. Penniston-Dorland

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New Age Constraints for Early Paleogene Strata of Central Patagonia, Argentina: Implications for the Timing of South American Land Mammal Ages, J. Marcelo Krause, William C. Clyde, Mauricio Ibañez-Mejía, Mark D. Schmitz, Timothy Barnum, Eduardo S. Bellosi, and Peter Wilf

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Ultrapotassic Dykes in the Moldanubian Zone and Their Significance for Understanding of the Post-collisional Mantle Dynamics During Variscan Orogeny in the Bohemian Massif, Šárka Kubínová, Shah Wali Faryad, Kryštof Verner, Mark Schmitz, and František Holub

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Ultrapotassic Dykes in the Moldanubian Zone and Their Significance for Understanding of the Post-Collisional Mantle Dynamics During Variscan Orogeny in the Bohemian Massif, Šárka Kubínová, Shah Wali Faryad, Kryštof Verner, Mark Schmitz, and František Holub

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Detrital Zircon Evidence for Paleoproterozoic West African Crust Along the Eastern North American Continental Margin, Georges Bank, Offshore Massachusetts, USA, Yvette D. Kuiper, Margaret D. Thompson, Sandra M. Barr, Chris E. White, J. Christopher Hepburn, and James L. Crowley

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Isotopic Compositions of Intrusive Rocks from the Wallowa and Olds Ferry Arc Terranes of Northeastern Oregon and Western Idaho: Implications for Cordilleran Evolution, Lithospheric Structure, and Miocene Magmatism, Gene A. Kurz, Mark D. Schmitz, Clyde J. Northrup, and Tracy L. Vallier

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Regional Greenland Accumulation Variability from Operation IceBridge Airborne Accumulation Radar, Gabriel Lewis, Erich Osterberg, Robert Hawley, Brian Whitmore, Hans Peter Marshall, and Jason Box

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Lidar Aboveground Vegetation Biomass Estimates in Shrublands: Prediction, Uncertainties and Application to Coarser Scales, Aihua Li, Shital Dhakal, Nancy F. Glenn, and Lucas P. Spaete

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Aerodynamic Roughness Length Estimation with Lidar and Imaging Spectroscopy in a Shrub-Dominated Dryland, Aihua Li, Wenguang Zhao, Jessica J. Mitchell, Nancy F. Glenn, Matthew J. Germino, Joel B. Sankey, and Richard G. Allen

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Geothermal Play Fairway Analysis of the Snake River Plain: Phase 2, Lee M. Liberty

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Combined Assimilation of Satellite Precipitation and Soil Moisture: A Case Study Using TRMM and SMOS Data, Liao-Fan Lin, Ardeshir M. Ebtehaj, Alejandro N. Flores, Satish Bastola, and Rafael L. Bras

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Bridging the Gap Between the Foreland and Hinterland II: Geochronology and Tectonic Setting of Ordovician Magmatism and Basin Formation on the Laurentian Margin of New England and Newfoundland, Francis A. Macdonald, Paul M. Karabinos, James L. Crowley, Eben B. Hodgin, Peter W. Crockford, and John W. Delano

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The Boron and Lithium Isotopic Composition of Mid-Ocean Ridge Basalts and the Mantle, Horst R. Marschall, V. D. Wanless, Nombumichi Shimizu, Philip A. E. Pogge von Strandmann, Tim Elliot, and Brian D. Monteleone

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A First Overview of SnowEx Ground-Based Remote Sensing Activities During the Winter 2016–2017, Hans-Peter Marshall, Lucas Spaete, Nancy Glenn, Chelsea Merriman, Chago Rodriguez, and Zach Uhlmann

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An Evaluation of the Ecohydrological Separation Hypothesis in a Semiarid Catchment, Ryan J. McCutcheon, James P. McNamara, Matthew J. Kohn, and Samantha L. Evans