Publications
Products (journal articles, reports, fact sheets) authored by current and past scientists are listed below. Please check the USGS Pubs Warehouse for other USGS publications.
Filter Total Items: 1859
The abandoned mine inventory of the United States—A brief summary
The Infrastructure Investment and Jobs Act of 2021 required the Secretary of the Interior to establish a program to inventory abandoned hard-rock mines in the United States. The Department of the Interior’s Office of Environmental Policy and Compliance asked the U.S. Geological Survey’s Mineral Deposit Database project (USMIN) to use existing data sources to build an inventory of all...
Authors
Jeffrey L. Mauk, Nick Karl, Justin S. Pierson, Carma A. San Juan
The role of bedrock circulation depth and porosity in mountain streamflow response to prolonged drought
Quantitative understanding is lacking on how the depth of active groundwater circulation in bedrock affects mountain streamflow response to a multi‐year drought. We use an integrated hydrological model to explore the sensitivity of a variety of streamflow metrics to bedrock circulation depth and porosity under a plausible extreme drought scenario lasting up to 5 years. Endmember depth...
Authors
Rosemary W.H. Carroll, Andrew H. Manning, Kenneth H. Williams
Widespread occurrence of former anhydrite phenocrysts in Laramide-age magmas related to porphyry-skarn Cu mineralization at Santa Rita and Hanover-Fierro, New Mexico, USA
Reports of magmatic anhydrite are relatively rare, with only ~30 occurrences documented worldwide so far. However, magmatic anhydrite saturation is difficult to recognize because anhydrite decomposes rapidly in near-surface environments. In most cases, only anhydrite inclusions shielded within other phenocryst phases were able to survive. Alternatively, since anhydrite phenocrysts...
Authors
Andreas Audétat, Jia Chang, Sean Patrick Gaynor
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 Noële Croteau, Tyler Kane, Amy M Marcarelli, R. Blaine McCleskey, Gordon Paterson, Craig A. Stricker, David C Walters
Accuracy and precision of U–Pb zircon geochronology at high spatial resolution (7–20 μm spots) by laser ablation-ICP-single-collector-sector-field-mass spectrometry
Use of small spots (≤20µm) for laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) U-Pb zircon geochronology is of increasing interest in the Earth sciences because the temporal record of geologic processes is often preserved on a fine-scale within zircon grains. However the systematic biases and external sources of uncertainity of U-Pb ages is poorly defined when...
Authors
Pulok K. Mukherjee, Amanda (Kate) Souders, Paul J. Sylvester
Geophysical characterization of an alkaline‑carbonatite complex using gravity and magnetic methods at Magnet Cove, Arkansas, USA
The Magnet Cove alkaline‑carbonatite complex (MCC), located in the Ouachita Mountains of south-central Arkansas in the United States, hosts an extensive variety of rare rock types and critical mineral resources with physical properties (density and magnetization) that contrast significantly with the sedimentary rocks into which they have intruded. Newly acquired ground-based gravity and...
Authors
Chelsea Morgan Amaral, Andrew P. Lamb, Gregory Dumond
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 Noële Croteau, Michael G. Iacchetta, Johanna Blake, Charles A. Cravotta, Bethany K. Kunz, Charles N. Alpers, Jill A. 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
State shifts in the deep Critical Zone drive landscape evolution in volcanic terrains
Understanding the near-surface environment where atmospheric and solid earth processes interact, often termed the “Critical Zone,” is important for assessing resources and building resilient societies. Here, we examine a volcanic landscape in the Oregon Cascade Range, an understudied Critical Zone setting that is host to major regional water resources, pervasive silicate weathering, and...
Authors
Leif Karlstrom, Nathaniel Klema, Gordon G. Grant, Carol A. Finn, Pamela L. Sullivan, Sarah Cooley, Alex Simpson, Becky Fasth, Katherine Cashman, Ken Ferrier, Lyndsay B. Ball, Daniele McKay
Brittle regime slip partitioned damage and deformation mechanisms along the eastern Denali fault zone in southwestern, Yukon
Rare bedrock exposures of the eastern Denali fault zone in southwestern Yukon allow for the measurement, sampling, and analyses of brittle regime fault slip data and deformation mechanisms to explore relations to far field, oblique plate motions. Host rock lithologies and associated slip surfaces show episodic damage zone‐related deformation and calcite ± hematite ± chlorite related...
Authors
Jonathan Caine, Omero F. Orlandini, Frederick W. Vollmer, Heather A. Lowers
The EnMAP spaceborne imaging spectroscopy mission: Initial scientific results two years after launch
Imaging spectroscopy has been a recognized and established remote sensing technology since the 1980s, mainly using airborne and field-based platforms to identify and quantify key bio- and geo-chemical surface and atmospheric compounds, based on characteristic spectral reflectance features in the visible-near infrared (VNIR) and short-wave infrared (SWIR). Spaceborne missions, a leap in...
Authors
Sabine Chabrillat, Saskia Foerster, Karl Segl, Alison Beamish, Maximilian Brell, Saeid Asadzadeh, Robert Milewski, Kathrin J. Ward, Arlena Brosinsky, Katrin Koch, Daniel Scheffler, Stephane Guillaso, Alexander Kokhanovsky, Sigrid Roessner, Luis Guanter, Hermann Kauffman, Nicole Pinnel, Emiliano Carmona, Tobias Storch, Tobias Hank, Katja Berger, Mathias Wocher, Patrick Hostert, Sebastian van der Linden, Akpona Okujeni, Andreas Janz, Benjamin Jakimow, Astrid Bracher, Mariana Soppa, L.M.A. Alvarado, H. Buddenbaum, Birgit Heim, Uta Heiden, Jose M. Moreno, Cindy Ong, Niklas Bohn, Robert Green, Martin Bachmann, Raymond F. Kokaly, Martin Schodlok, Thomas H. Painter, Ferran Gascon, Fabrizia Buongiorno, Matti Mottus, Vittorio Ernesto Brando, Hannes Feilhauer, Matthias Betz, Simon Baur, Rupert Feckl, Anke Schickling, Vera Krieger, Michael Bock, Laura La Porta, Sebastian Fischer
The chlorine evolution of arc magmas and the crustal water filter
Degassing of water from magmatic systems is key to transporting metals from magmas to form ore deposits, but elements like chlorine, through the formation of anion complexes, can be important in solubilizing and mobilizing these metals into water-rich fluids. Reconstructing the Cl systematics of evolving magmas is thus an important step towards understanding the origins of ore deposits...
Authors
Jackson Stone Borchardt, Cin-Ty Lee
Spread and frequency of explosive silicic volcanism of the Carpathian-Pannonian Region during Early Miocene: Clues from the SW Pannonian Basin and the Dinaridesion during Early Miocene: clues from the SW Pannonian Basin and the Dinarides
Explosive silicic volcanism of the Carpathian-Pannonian Region (CPR) is increasingly recognized as the primary source of tephra across the Alpine-Mediterranean region during the Early and Middle Miocene. However, the tephrostratigraphic framework for this period of volcanic activity is still incomplete. We present new multi-proxy data from Lower Miocene ignimbrites and tephra fallout...
Authors
Mihovil Brlek, Nina Trinajstić, Sean Patrick Gaynor, Steffen Kutterolf, Folkmar Hauff, Julie Schindlbeck-Belo, Sanja Šuica, Kuo-Lung Wang, Hao-Yang Lee, Elena Watts, Svetoslav V. Georgiev, Vlatko Brčić, Marko Špelić, Ivan Mišur, Duje Kukoč, Blair Schoene, Réka Lukács