Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2493
Mapping bedrock outcrops in the Sierra Nevada Mountains (California, USA) using machine learning Mapping bedrock outcrops in the Sierra Nevada Mountains (California, USA) using machine learning
Accurate, high-resolution maps of bedrock outcrops can be valuable for applications such as models of land–atmosphere interactions, mineral assessments, ecosystem mapping, and hazard mapping. The increasing availability of high-resolution imagery can be coupled with machine learning techniques to improve regional bedrock outcrop maps. In the United States, the existing 30 m U.S...
Authors
Apoorva Ramesh Shastry, Corina Cerovski-Darriau, Brian Coltin, Jonathan D. Stock
Towards mobile wind measurements using joust configured ultrasonic anemometer for applications in gas flux quantification Towards mobile wind measurements using joust configured ultrasonic anemometer for applications in gas flux quantification
Small uncrewed aerial systems (sUASs) can be used to quantify emissions of greenhouse and other gases, providing flexibility in quantifying these emissions from a multitude of sources, including oil and gas infrastructure, volcano plumes, wildfire emissions, and natural sources. However, sUAS-based emission estimates are sensitive to the accuracy of wind speed and direction measurements...
Authors
Derek Hollenbeck, Colin W. Edgar, Eugenie Euskirchen, Kristen L. Manies
Strong shaking from past Cascadia Subduction Zone earthquakes encoded in coastal landforms Strong shaking from past Cascadia Subduction Zone earthquakes encoded in coastal landforms
Strong earthquakes along subduction zones are often devastating events, but sparse records along some tectonic margins limit our understanding of seismic hazards. Constraining shaking intensities is critical, especially in subduction zones with infrequent but large-magnitude earthquakes like the Cascadia Subduction Zone (CSZ), where the lack of recorded ground motions has led to...
Authors
Sean Richard LaHusen, Alex R. Grant, Jonathan P. Perkins, Devin McPhillips
Microbial ecology of permafrost soils: Populations, processes, and perspectives Microbial ecology of permafrost soils: Populations, processes, and perspectives
Permafrost microbial research has flourished in the past decades, due in part to improvements in sampling and molecular techniques, but also the increased focus on the permafrost greenhouse gas feedback to climate change and other ecological processes in high latitude and alpine permafrost soils. Permafrost microorganisms are adapted to these extreme environments and remain active at low
Authors
Mark Waldrop, Jessica Ernakovich, Tatiana A. Vishnivetskaya, Sean Schaefer, Rachel Mackelprang, Jiri Barta, Joy O’Brien, Matthias Winkel, Robyn A. Barbato, Liam Heffernan, Mary-Cathrine Leewis, Rebecca E. Hewitt, Jenni Hultman, Yanchen Sun, Christina Biasi, James A. Bradley, Susanne Liebner, Michael P. Ricketts, Mario Muscarella, Ursel Schuette, Fumnanya Abuah, Emily Whalen, Ina Timling, Carolina Voigt, Neslihan Tas, Karen G. Lloyd, Henri M.P. Siljanen, Elizaveta M. Rivkina, Jana Voriskova, Jing Tao, Renxing Liang, Zhen Li, Jay T. Lennon, T.C. Onstott
Cooling perspectives on the risk of pathogenic viruses from thawing permafrost Cooling perspectives on the risk of pathogenic viruses from thawing permafrost
Climate change is inducing wide-scale permafrost thaw in the Arctic and subarctic, triggering concerns that long-dormant pathogens could reemerge from the thawing ground and initiate epidemics or pandemics. Viruses, as opposed to bacterial pathogens, garner particular interest because outbreaks cannot be controlled with antibiotics, though the effects can be mitigated by vaccines and...
Authors
Rachel Mackelprang, Robyn A. Barbato, Andrew M. Ramey, Ursel M. E. Schutte, Mark Waldrop
Metal-rich lacustrine sediments from legacy mining perpetuate copper exposure to aquatic-riparian food webs Metal-rich lacustrine sediments from legacy mining perpetuate copper exposure to aquatic-riparian food webs
Historic copper mining left a legacy of metal-rich tailings resulting in ecological impacts along and within Torch Lake, an area of concern in the Keweenaw Peninsula, Michigan, USA. Given the toxicity of copper to invertebrates, this study assessed the influence of this legacy on present day nearshore aquatic and terrestrial ecosystems. We measured the metal (Co, Cu, Ni, Zn, Cd) and...
Authors
Brittany G. Perrotta, Karen A. Kidd, Kate M. Campbell, Marie Noele Croteau, Tyler Kane, Amy M. Marcarelli, R. Blaine McCleskey, Gordon Paterson, Craig A. Stricker, David Walters
U-Pb scheelite ages of tungsten and antimony mineralization in the Stibnite-Yellow Pine district, central Idaho U-Pb scheelite ages of tungsten and antimony mineralization in the Stibnite-Yellow Pine district, central Idaho
The Stibnite-Yellow Pine district contains the largest antimony resource in the United States, as well as significant gold, and is a historic producer of tungsten. Application of in situ laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) direct dating of scheelite from two Au-Sb-W ore deposits, Yellow Pine and Hangar Flats, yielded an older group of U-Pb ages in the...
Authors
Niki E. Wintzer, Mark D. Schmitz, Virginia S. Gillerman, Jeffrey D. Vervoort
Field trip to a Laramide shallow subduction channel: Orocopia Schist in the Gavilan Hills, southeasternmost California; with incidental localities for three blue minerals Field trip to a Laramide shallow subduction channel: Orocopia Schist in the Gavilan Hills, southeasternmost California; with incidental localities for three blue minerals
No abstract available.
Authors
Gordon B. Haxel, Carl E. Jacobson, Gabe S. Epstein
3D Dynamic rupture modeling of the 6 February 2023, Kahramanmaraş, Turkey Mw 7.8 and 7.7 earthquake doublet using early observations 3D Dynamic rupture modeling of the 6 February 2023, Kahramanmaraş, Turkey Mw 7.8 and 7.7 earthquake doublet using early observations
The 2023 Turkey earthquake sequence involved unexpected ruptures across numerous fault segments. We present 3D dynamic rupture simulations to illuminate the complex dynamics of the earthquake doublet. Our models are constrained by observations available within days of the sequence and deliver timely, mechanically consistent explanations of the unforeseen rupture paths, diverse rupture...
Authors
Alice-Agnes Gabriel, Thomas Ulrich, Mathilde Marchandon, James Burkhardt Biemiller, John Rekoske
Preliminary ground and airborne-based geophysical mapping and modelling of an active hydrothermal system at Mammoth Lakes, California Preliminary ground and airborne-based geophysical mapping and modelling of an active hydrothermal system at Mammoth Lakes, California
Mammoth Lakes, California hosts a productive hydrothermal system within the seismically active south moat of Long Valley Caldera. Surficial evidence of the shallow hydrothermal system includes discrete zones of tree-kill dispersed between Shady Rest Park and the Casa Diablo Geothermal Power Plant (40 MW), as well as east of the power plant. The tree-kill areas are associated with...
Authors
Jacob Elliott Anderson, Jonathan M.G. Glen, Claire Bouligand, Grant Harold Rea-Downing, Tait E. Earney
A multidisciplinary approach that considers occurrence, geochemistry, bioavailability, and toxicity to prioritize critical minerals for environmental research A multidisciplinary approach that considers occurrence, geochemistry, bioavailability, and toxicity to prioritize critical minerals for environmental research
Critical minerals (or critical elements) are minerals or elements that are essential to global security and development and have supply chains vulnerable to disruption. In general, knowledge of the environmental behavior and health effects of critical elements is needed to support the development of safe and environmentally responsible supplies. This knowledge includes identifying...
Authors
Sarah Jane White, Tyler Kane, Kate M. Campbell, Marie Noele Croteau, Michael G. Iacchetta, Johanna Blake, Charles A. Cravotta, Bethany K. Kunz, Charles N. Alpers, Jill Jenkins, Katherine Walton-Day
By
Environmental Health Program, Mineral Resources Program, California Water Science Center, Colorado Water Science Center, Columbia Environmental Research Center, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Pennsylvania Water Science Center, Wetland and Aquatic Research Center