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Geology, Minerals, Energy, and Geophysics Science Center

Scientists with the GMEG Science Center work on issues related to geologic processes, mineral and energy resource potential, and past climate, primarily in the Western United States. The science staff includes Geologists, Geophysicists, Geochemists, Biologists, and Geographic Information Systems specialists located in Arizona, California, Nevada, Oregon, and Washington.

News

Uncovering the Mysteries of the Bering Land Bridge

Uncovering the Mysteries of the Bering Land Bridge

Restoring Giants from the Ground Up: A Story of Fire, Soil, and Sequoias

Restoring Giants from the Ground Up: A Story of Fire, Soil, and Sequoias

The Threat of Coastal Flooding from Cascadia Earthquake-Driven Land Subsidence

The Threat of Coastal Flooding from Cascadia Earthquake-Driven Land Subsidence

Publications

Using subducting plate motion to constrain Cascadia slab geometry and interface strength Using subducting plate motion to constrain Cascadia slab geometry and interface strength

Subduction zones are home to multiple geohazards driven by the evolution of the regional tectonics, including earthquakes, volcanic eruptions and landslides. Past evolution builds the present-day structure of the margin, while the present-day configuration of the system determines the state-of-stress in which individual hazardous events manifest. Regional simulations of subduction zones...
Authors
Menno Fraters, Magali Billen, John Naliboff, Lydia M. Staisch, Janet Watt, Haoyuan Li

Enhanced geothermal systems electric-resource assessment for the Great Basin, southwestern United States Enhanced geothermal systems electric-resource assessment for the Great Basin, southwestern United States

The U.S. Geological Survey recently (2025) completed a provisional assessment of the geothermal-electric resources associated with high-temperature, low-permeability rock formations of the Great Basin, Southwestern United States. If sufficient technological advances to commercialize enhanced geothermal systems occur, then a current best provisional estimate for electric-power generation...
Authors
Erick R. Burns, Colin F. Williams, Jacob DeAngelo

Cave records reveal recent origin of North America’s deepest canyon Cave records reveal recent origin of North America’s deepest canyon

We explore how and when Hells Canyon, North America’s deepest river gorge (~2,400 m deep), formed, addressing these fundamental questions first posed by W. Lindgren [The Gold Belt of the Blue Mountains of Oregon (1901)]. Existing hypotheses about the canyon’s formation and timing of incision remain speculative due to a lack of direct constraints and geomorphic analysis in the canyon...
Authors
Matthew Morriss, Nate Mitchell, Brian Yanites, Lydia M. Staisch, Oliver Korup

Science

Life Cycle of Critical Minerals: A Balanced Approach to Meeting Our Nation's Resource Demands

Critical minerals are essential to the Nation’s economy and security. Demand for critical minerals is increasing, and it is essential to balance the societal need for these minerals with efforts to understand the effects of mining on other natural resources and to develop techniques to minimize these effects. The USGS Minerals Resources Life Cycle Integrated Science Team (IST) focuses on the life...
Life Cycle of Critical Minerals: A Balanced Approach to Meeting Our Nation's Resource Demands

Life Cycle of Critical Minerals: A Balanced Approach to Meeting Our Nation's Resource Demands

Critical minerals are essential to the Nation’s economy and security. Demand for critical minerals is increasing, and it is essential to balance the societal need for these minerals with efforts to understand the effects of mining on other natural resources and to develop techniques to minimize these effects. The USGS Minerals Resources Life Cycle Integrated Science Team (IST) focuses on the life...
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Geology of the eastern Piedmont and upper Coastal Plain along the Fall Zone, Virginia to Georgia

This USGS NCGMP Project aims to fill the void in geologic map coverage along the Fall Zone from southeastern Virginia to central Georgia, for critical mineral research, earthquake hazards, and interstate correlation. We are also forging strong cooperative ties within the NCGMP by combining resources across all three Program components by supporting Virginia Energy (Virginia Geological Survey), the...
Geology of the eastern Piedmont and upper Coastal Plain along the Fall Zone, Virginia to Georgia

Geology of the eastern Piedmont and upper Coastal Plain along the Fall Zone, Virginia to Georgia

This USGS NCGMP Project aims to fill the void in geologic map coverage along the Fall Zone from southeastern Virginia to central Georgia, for critical mineral research, earthquake hazards, and interstate correlation. We are also forging strong cooperative ties within the NCGMP by combining resources across all three Program components by supporting Virginia Energy (Virginia Geological Survey), the...
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2024 Hurricane Helene Landslide Hazards

Hurricane Helene produced widespread and damaging landslides. The USGS is mapping landslides to support our partners. This page provides information about the extent and severity of landslide impacts. Hurricane Helene made landfall in Florida as a Category 4 storm on Thursday, September 26th, 2024. The hurricane continued across the southern Appalachian Mountains producing record rainfall. This...
2024 Hurricane Helene Landslide Hazards

2024 Hurricane Helene Landslide Hazards

Hurricane Helene produced widespread and damaging landslides. The USGS is mapping landslides to support our partners. This page provides information about the extent and severity of landslide impacts. Hurricane Helene made landfall in Florida as a Category 4 storm on Thursday, September 26th, 2024. The hurricane continued across the southern Appalachian Mountains producing record rainfall. This...
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