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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.

Filter Total Items: 174890

Assessment of undiscovered conventional oil and gas resources in the Santos Basin, Campos Basin, and Espírito Santo Basin provinces of Brazil, 2024 Assessment of undiscovered conventional oil and gas resources in the Santos Basin, Campos Basin, and Espírito Santo Basin provinces of Brazil, 2024

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 10.4 billion barrels of oil and 53.3 trillion cubic feet of gas in the Santos Basin, Campos Basin, and Espírito Santo Basin provinces of Brazil.
Authors
Christopher J. Schenk, Sarah E. Gelman, Jane S. Hearon, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller

Background, methods, goals, challenges, opportunities, and information needs Background, methods, goals, challenges, opportunities, and information needs

Understanding how climate change and variability will impact grassland ecosystems is crucial for successful grasslands management in the future. In 2020, the North Central Climate Adaptation Science Center began a project to establish a baseline of information to best serve grassland managers (that is, those individuals who develop grassland management plans, implement those plans on the...

Bascom Laser Diffraction Sedimentology Laboratory, Reston, Virginia Bascom Laser Diffraction Sedimentology Laboratory, Reston, Virginia

Introduction At the Bascom Laser Diffraction Sedimentology Laboratory, which is located in the Florence Bascom Geoscience Center at U.S. Geological Survey (USGS) headquarters in Reston, Virginia, scientists use physical sedimentology and particle characterization techniques to conduct detailed sediment characterization. Scientists address research problems in collaboration with other...
Authors
Grant D. Colip

The petrogenesis of Þingmúli volcano, East Fjords; Iceland The petrogenesis of Þingmúli volcano, East Fjords; Iceland

In this work we revisit Þingmúli volcano (Þ = Th), a classic locality known as an example of a complete tholeiitic differentiation. Þingmúli is a ~ 9.5 Ma extinct central volcano located in the East Fjords of Iceland, in which the whole compositional spectrum from basalt to rhyolites have erupted. These volcanic products have been previously considered as petrogenetically related by an...
Authors
Amanda L. Hughes, Joaquín A. Cortès, Dave McGarvie, Richard J. Moscati, Valerie Olive

Ten new insights in climate science 2025 Ten new insights in climate science 2025

Interdisciplinary understanding is vital for delivering sound climate policy advice. However, navigating the ever-growing and increasingly diverse scholarly literature on climate change is challenging for any individual researcher. This annual synthesis highlights and explains recent advances across a variety of fields of climate change research. This year, the 10 insights focus on: (1)...
Authors
Daniel Ospina, Paula Mirazo, Richard P. Allan, Smriti Basnett, Ana Bastos, Nishan Bhattarai, Wendy Broadgate, Derik J. Broekhoff, Mercedes Bustamante, Deliang Chen, Yeonju Choi, Peter Cox, Luiz A. Domeignoz-Horta, Krislie Ebi, Pierre Friedlingstein, Thomas L. Frölicher, Sabine Fuss, Helge F. Goessling, Nicolas Gruber, Qingyou He, Sophie R. Hebden, Nadja Hedrich, Adrian Heilemann, Marina Hirota, Øivind Hodnebrog, Gustaf Hugelius, Santiago Izquierdo-Tort, Sirkku Juhola, Fumiko Kasuga, Piyu Ke, Douglas I. Kelley, Şiir Kilkiș, Maximilian Kotz, Nilushi Kumarasinghe, William F. Lamb, Shih-Yu Lee, Junguo Liu, Cara N. Maesano, Maria A. Martin, Guilherme G. Mazzochini, Christopher J. Merchant, Akira S. Mori, Jennifer Morris, Åsa Persson, Hans-Otto Pörtner, Benedict S. Probst, Justine Ramage, Estelle Razanatsoa, Aaron Redman, Johan Rockström, Regina Rodrigues, Sophie Ruehr, Sadie J. Ryan, Carl-Friedrich Schleussner, Peter Schlosser, William A. Scott, Jan C. Semenza, Hansjörg Seybold, Drew T. Shindell, Giles B. Sioen, Kathryn E. Smith, Youba Sokona, Annika H. Stechemesser, Thomas F. Stocker, Sophie H.L. Su, Djiby Thiam, Gregory Trencher, Anna-Maria Virkkala, Lila Warszawski, Sarah R. Weiskopf, Henry Wu, Shupeng Zhu

Mineral commodity summaries 2026 Mineral commodity summaries 2026

Introduction Each mineral commodity chapter of the 2026 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world production, reserves, and...

Out with the old: Empirical trends in U.S. land-based wind turbine decommissioning and repowering Out with the old: Empirical trends in U.S. land-based wind turbine decommissioning and repowering

A growing number of wind turbines (WTs) across the globe are now reaching or exceeding their expected service lifetime; WT decommissioning is on the rise. Accordingly, questions pertaining to WT end-of-life have risen in importance in policy and practice. Yet, research on the various factors relating to WT decommissioning is relatively sparse. Moreover, the key assumptions underpinning...
Authors
Joseph Rand, Louisa Kramer, Ben Hoen, James Diffendorfer, Christopher Garrity

Evaluating machine learning approaches to identify and predict oil and gas produced water lithium concentrations Evaluating machine learning approaches to identify and predict oil and gas produced water lithium concentrations

Recently, the demand for battery-grade lithium has substantially increased, largely due to electrification of the transportation sector. The search for new lithium sources has turned to produced waters (frequently brines), a large-volume wastewater by-product of oil and gas extraction. Geochemical analysis indicates the presence of varying concentrations of lithium from produced water...
Authors
Emil Attanasi, Bonnie McDevitt, Philip A. Freeman, Timothy Coburn

Estimating the magnitude and frequency of floods at ungaged locations on urban streams in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina, using data through the 2022 water year Estimating the magnitude and frequency of floods at ungaged locations on urban streams in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina, using data through the 2022 water year

In 2024, the U.S. Geological Survey, in cooperation with the Tennessee Department of Transportation, updated the methods for predicting the magnitude and frequency of floods at ungaged locations on streams in urban areas in Tennessee. The study area included 136 streamgages in urban areas in Tennessee, Mississippi, Alabama, Georgia, South Carolina, and North Carolina that had at least 10...
Authors
Daniel M. Wagner, David E. Ladd

James Buttle Review: A synthesis of riparian plant water use over two decades in North American drylands James Buttle Review: A synthesis of riparian plant water use over two decades in North American drylands

Assessing riparian ecosystem water use, particularly transpiration from vegetation and evaporation from soils (‘plant water use’, hereafter), is key to developing sound water management approaches. In western North America, a multidecadal drought is reducing water availability and increasing the use of detailed water budgets. Questions related to both removal of vegetation for water...
Authors
Emily C. Palmquist, Pamela Nagler, Kiona Ogle, Claudia DiMartini, Jeffrey R. Kennedy, Joel B. Sankey

Flood- inundation maps for Río Grande De Loíza in and near Caguas, Puerto Rico, 2026 Flood- inundation maps for Río Grande De Loíza in and near Caguas, Puerto Rico, 2026

Digital flood- inundation maps for a 2.7- mile reach of Río Grande De Loíza in Caguas, Puerto Rico, were created by the U.S. Geological Survey. Water- surface profiles were computed for the stream reach by using a one- dimensional, steady- state, step- backwater model. The model was calibrated to the current (2025) stage- streamflow relation (rating curve) for the U.S. Geological Survey...
Authors
Chad J. Ostheimer, Legna M. Torres-Garcia, Julieta M. Gomez-Fragoso

Migration water temperature and heat stress assessments in western Alaska Chinook salmon overlapping the 2019 heatwave Migration water temperature and heat stress assessments in western Alaska Chinook salmon overlapping the 2019 heatwave

Chinook salmon population declines span their geographic range with climate hypothesized as a major driver. Concerns of warming freshwater temperatures in their northern range gained urgency during 2019 when a heatwave coincided with premature mortality. This study examined heat stress during the 2019 heatwave compared to subsequent years and described water temperatures in western...
Authors
Vanessa R. von Biela, Amy M. Regish, Stephen D. McCormick, Joseph Spaeder, Kevin Whitworth, Justin Leon, Daniel Gillikin, Zachary Liller, Renae Ivanoff, Jenefer Bell, Sean D. Larson, Michael P. Carey, Christian E. Zimmerman
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