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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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3-D geological modeling for numerical flow simulation studies of gas hydrate reservoirs at the Kuparuk State 7-11-12 Pad in the Prudhoe Bay Unit on the Alaska North Slope 3-D geological modeling for numerical flow simulation studies of gas hydrate reservoirs at the Kuparuk State 7-11-12 Pad in the Prudhoe Bay Unit on the Alaska North Slope

Accurate reservoir evaluation requires reliable three-dimensional (3-D) geological models. This study conducted 3-D geological modeling for numerical flow simulation of the B1 sand gas hydrate reservoir at the Kuparuk State 7-11-12 pad, Prudhoe Bay Unit, Alaska North Slope. The model integrates well logs, core, and seismic data to address spatial heterogeneity in geological structures...
Authors
Machiko Tamaki, Misuzu Taninaka, Satoshi Ohtsuki, Aung Than Tin, Naoyuki Shimoda, Timothy Collett, Ray Boswell

Incorporating projected climate conditions to map future riparian refugia Incorporating projected climate conditions to map future riparian refugia

Identifying areas expected to remain buffered from climate change and maintain biodiversity and ecological function (i.e., climate refugia) is important for climate adaptation planning. As structurally diverse transitional zones between terrestrial and aquatic environments, riparian areas are often biological hotspots and provide critical corridors for species movement, particularly in...
Authors
Kimberly E Szcodronski, Alisa A. Wade, Sarah Elizabeth Burton, Blake R. Hossack

Evidence of long-range transport of selenium downstream of coal mining operations in the Elk River Valley, Canada Evidence of long-range transport of selenium downstream of coal mining operations in the Elk River Valley, Canada

Expanding coal-mining operations in the Elk River Valley (British Columbia, Canada) have increased total selenium (Se) concentrations in the transboundary Lake Koocanusa (Canada and United States), but the spatial extent of Se transport from the Elk River Mines is unknown. We evaluated multiple lines of evidence of long-range transport of Se at five sites downstream of the mines relative...
Authors
Madison Jo Foster, Meryl Biesiot Storb, Johanna Blake, Travis S. Schmidt, Rochelle A. Nustad, Ashley Morgan Bussell

A Bayesian age from dispersed plagioclase and zircon dates in the Los Chocoyos ash, Central America A Bayesian age from dispersed plagioclase and zircon dates in the Los Chocoyos ash, Central America

The eruption that produced the modern Atitlán caldera in Guatemala has a Volcanic Explosivity Index (VEI) greater than 8, making it the largest of the Quaternary in the Central American Volcanic Arc (CAVA). It generated ∼1220 km3 (730 km3 dense rock equivalent) of dispersed rhyolitic ash and unwelded pyroclastic flow deposits known as the Los Chocoyos ash. Despite its scale, the age of...
Authors
Alec Baudry, Bradley S. Singer, Brian Jicha, Christine E. Jilly-Rehak, Jorge A. Vazquez, C. Brenhin Keller

Significant challenges to the sustainability of the California coast considering climate change Significant challenges to the sustainability of the California coast considering climate change

Climate change is an existential threat to the environmental and socioeconomic sustainability of the coastal zone and impacts will be complex and widespread. Evidence from California and across the United States shows that climate change is impacting coastal communities and challenging managers with a plethora of stressors already present. Widespread action could be taken that would...
Authors
Karen M. Thorne, Glen M. MacDonald, Francisco P. Chavez, Richard F. Ambrose, Patrick L. Barnard

Near-real-time earthquake-induced fatality estimation using crowdsourced data and few-shot large-language models Near-real-time earthquake-induced fatality estimation using crowdsourced data and few-shot large-language models

When a damaging earthquake occurs, immediate information about casualties (e.g., fatalities and injuries) is critical for time-sensitive decision-making by emergency response and aid agencies in the first hours and days. Systems such as the Prompt Assessment of Global Earthquakes for Response (PAGER) by the U.S. Geological Survey (USGS) were developed to provide a forecast of such...
Authors
Chenguang Wang, Davis T. Engler, Xuechun Li, James Hou, David J. Wald, Kishor S. Jaiswal, Susu Xu
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