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Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Insights into Mountain Pass carbonatite formation from in-situ sulfur isotopes and geochemistry of sulfate and sulfide minerals Insights into Mountain Pass carbonatite formation from in-situ sulfur isotopes and geochemistry of sulfate and sulfide minerals

The Mountain Pass carbonatite stock hosts a world-class rare earth element deposit and may be classified as a carbonate-sulfate igneous rock, as it contains on average > 50 volume percent carbonate minerals and 20 to 30 volume percent sulfate minerals. The sulfates range in composition from barite to celestine and locally occur with sparse sulfide minerals. We investigate the origin of...
Authors
Erin Kay Benson, Kathryn E. Watts, Michael J. Pribil, Jay M. Thompson, Heather A. Lowers
By
Geology, Minerals, Energy, and Geophysics Science Center

Estimation of impounded sediment volume in the Similkameen River upstream of Enloe Dam, Okanogan County, Washington Estimation of impounded sediment volume in the Similkameen River upstream of Enloe Dam, Okanogan County, Washington

The Enloe Dam was built in 1920 for hydropower generation and impounds a steep-banked, narrow reach of the Similkameen River in north-central Washington. During the subsequent century, sediment from the Similkameen River watershed, which includes historical mining operations, accumulated within Enloe Dam’s impoundment. Enloe Dam ceased hydropower production in 1958 and is currently under
Authors
Alexander O. Headman, Oscar A. Wilkerson, Christopher A. Curran, Andrew S. Gendaszek
By
Washington Water Science Center

Utilization of multiple geochronology techniques to constrain the age of laterization and mineralization of the world-class Mount Weld rare earth element deposit, Western Australia Utilization of multiple geochronology techniques to constrain the age of laterization and mineralization of the world-class Mount Weld rare earth element deposit, Western Australia

Pervasive chemical weathering on stable cratons may form thick regoliths and elemental enrichment, but constraining the age of regolith formation is challenging. In this study we utilize multiple geochronological techniques on different minerals from the world-class Mount Weld rare earth element (REE) deposit, formed by lateritic weathering of a carbonatite, to constrain the age of...
Authors
Philip L. Verplanck, Cameron Mark Mercer, Jay M. Thompson, Martin Danišík, Heather A. Lowers, Leah E. Morgan, Ganesh Bhat
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Denver Microbeam Laboratory

Adaptive capacity of freshwater organisms in North America: Current understanding and future applications Adaptive capacity of freshwater organisms in North America: Current understanding and future applications

Freshwater species are increasingly threatened by climate change, yet our ability to assess their vulnerability remains incomplete. Typically, climate change vulnerability assessments (CCVAs) evaluate three components: exposure, sensitivity, and adaptive capacity. Adaptive capacity, defined as the ability of a species to adjust to changing conditions, provides critical insight into how...
Authors
Holly Susan Embke, Karen M Alofs, David Bunnell, Christy M. Caudill, Cindy Chu, Corey Garland Dunn, Kaelyn Fogelman, Spencer T. Gardner, Tomas O Hook, Scott A. Jackson, Matthew Keefer, Scott T Koenigbauer, Olivia E. LeDee, Stuart A. Ludsin, Abigail Lynch, Bonnie Myers, Elizabeth A. Nyboer, Travis Seaborn, Cory Suski, Lindsey Thurman, Annika W. Walters, Jacob Thomas Westhoff
By
Ecosystems Mission Area, Cooperative Research Units, Climate Adaptation Science Centers, Great Lakes Science Center, Northern Rocky Mountain Science Center

Distribution and Abundance of Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) at the Sepulveda Dam Basin, Los Angeles County, California—2025 Data Summary Distribution and Abundance of Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) at the Sepulveda Dam Basin, Los Angeles County, California—2025 Data Summary

Executive Summary We surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) along Bull Creek, Haskell Creek, and the Los Angeles River (Sepulveda Dam project area) in Los Angeles County, California, in 2025. Four vireo surveys were completed between April 16 and July 2, 2025, and three flycatcher...
Authors
Lisa D. Allen, Barbara E. Kus
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys at the city of Carlsbad Preserve, San Diego County, California—2025 data summary Southwestern Willow Flycatcher (Empidonax traillii extimus) surveys at the city of Carlsbad Preserve, San Diego County, California—2025 data summary

Executive Summary We surveyed for Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) at five survey areas within the City of Carlsbad Preserve, Carlsbad, California, in 2025. Three flycatcher surveys were completed between May 16 and June 30, 2025. One transient flycatcher was observed at the Lake Calavera survey area in the City of Carlsbad Preserve in 2025.
Authors
Lisa D. Allen, Barbara E. Kus
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)
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