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Publications

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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Preventing overfitting when using tree-based methods for mapping hydrothermal favorability Preventing overfitting when using tree-based methods for mapping hydrothermal favorability

Ensemble tree-based algorithms are robust tools for estimating sparsely distributed resources with non-linear dependencies (e.g., hydrothermal systems). These algorithms naturally accommodate the threshold conditions necessary to enable and support hydrothermal systems (e.g., having sufficient heat and permeability) and are simpler than many other non-linear machine learning strategies...
Authors
Stanley Paul Mordensky, Erick R. Burns, John Lipor, Jacob DeAngelo

Pre-eruptive characteristics of “suspect” silicic magmas in Carlin-type Au-forming systems Pre-eruptive characteristics of “suspect” silicic magmas in Carlin-type Au-forming systems

World-class Carlin-type Au deposits hosted in sedimentary rock were formed when profuse Eocene silicic magmatism swept across northern Nevada in response to arc migration. Carlin-type Au deposits formed along with porphyry/skarn Cu-Mo-W-Au deposits, epithermal Ag-Au deposits, and distal disseminated Ag-Au deposits. But unlike these other Au-bearing deposits that have clear associations...
Authors
Celestine N. Mercer, Julie Roberge, Regina Marie Khoury, Albert H. Hofstra

Exploring Martian geothermal and liquid water potential with basin modeling Exploring Martian geothermal and liquid water potential with basin modeling

Assessing the potential for geothermal energy and liquid water presence in the Martian subsurface is crucial for future exploration and habitability studies. In this work, we employed comprehensive finite element model simulations adapted specifically for Martian conditions to estimate subsurface temperatures and the potential for liquid water at depth within Martian crater basins. Rock...
Authors
Rand Gardner, Justin E. Birdwell, Katherine L. French, Chris Okubo, Janet K. Pitman, Stanley T. Paxton, Jason A. Flaum

Evaluating mountain goat population structure in Glacier National Park and Waterton Lakes National Park Evaluating mountain goat population structure in Glacier National Park and Waterton Lakes National Park

Mountain goats are an iconic, climate-sensitive species across their North American alpine range. Among its nearly complete complement of native wildlife, no single species embodies Glacier National Park (GNP) more than the mountain goat. They play an important role as an alpine food source for many of the park’s carnivores including wolverines, mountain lions, and grizzly bears...
Authors
Tabitha A. Graves, Eliza Stein, Lindsay M Dose, Rachel S. Crowhurst, Heather Thomas, Clinton W. Epps, Rob Found, Jami Belt, Mark Biel

Potential for co-production of lithium and geothermal resources in the Gulf Coast Potential for co-production of lithium and geothermal resources in the Gulf Coast

Lithium brine extractions and geothermal resource developments often are not economically viable as standalone projects, but they May become cost effective when the potential for both resources exist within the same reservoir. Subsurface datasets were analyzed to identify areas in the U.S. Gulf Coast region with potential for lithium brine and geothermal heat recovery. Temperature...
Authors
Rand Gardner, Justin E. Birdwell

Effects of climate change on Midwestern ecosystems: Central and Eastern North American Grassland and Shrubland Effects of climate change on Midwestern ecosystems: Central and Eastern North American Grassland and Shrubland

The Central and Eastern North American Grassland and Shrubland ecosystem may be increasingly shaped by intensifying drought and shifting seasonality. Rising temperatures and more variable precipitation, marked by longer dry spells, are projected to increase evapotranspiration and soil moisture deficits, and yield more frequent drought. At the same time, warming temperatures are projected...
Authors
Hugh Ratcliffe, Katherine Charton, Taylor Siddons, Marta P. Lyons, Olivia E. LeDee
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