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Geology, Geophysics, and Geochemistry Science Center

Welcome to the Geology, Geophysics, and Geochemistry Science Center (GGGSC) located in Lakewood, Colorado on the Denver Federal Center. At GGGSC, we apply expertise in geology, geophysics, and geochemistry to interdisciplinary efforts in support of the USGS mission to address the Nation’s important earth science issues, with an emphasis on mineral resources.

News

USGS partners with Nevada to map critical mineral potential with cutting-edge data in Nevada

USGS partners with Nevada to map critical mineral potential with cutting-edge data in Nevada

Bipartisan Infrastructure Law helps fund new USGS facility at Colorado School of Mines, focused on energy and minerals research

Bipartisan Infrastructure Law helps fund new USGS facility at Colorado School of Mines, focused on energy and minerals research

MEDIA ADVISORY: Principal Deputy Assistant Secretary Brain, Director Applegate to Attend Groundbreaking for USGS Energy and Minerals Research Facility

MEDIA ADVISORY: Principal Deputy Assistant Secretary Brain, Director Applegate to Attend Groundbreaking for USGS Energy and Minerals Research Facility

Publications

Deep resistivity geophysics of the San Juan–Silverton caldera complex, San Juan County, Colorado (USA)

Magnetotelluric (MT) and audiomagnetotelluric (AMT) data are used to better understand the subsurface geology and mineral resources in the San Juan–Silverton caldera complex located near Silverton, Colorado, western United States, as part of the extensive southern Rocky Mountains volcanic field that covers much of southwestern Colorado and northern New Mexico. Seven MT and AMT profiles of varying
Authors
Brian D. Rodriguez, Douglas Yager, Eric D. Anderson, Robert L. Runkel, Bennett Eugene Hoogenboom, Bruce Smith, Maria Deszcz-Pan

Climate-driven increases in stream metal concentrations in mineralized watersheds throughout the Colorado Rocky Mountains, USA

Increasing stream metal concentrations apparently caused by climate warming have been reported for a small number of mountain watersheds containing hydrothermally altered bedrock with abundant sulfide minerals (mineralized watersheds). Such increases are concerning and could negatively impact downstream ecosystem health, water resources, and mine-site remediation efforts. However, the pervasivenes
Authors
Andrew H. Manning, Tanya N. Petach, Robert L. Runkel, Diane M. McKnight

Evaluation of the characteristics, discharge, and water quality of selected springs at Fort Irwin National Training Center, San Bernardino County, California

Eight springs and seeps at Fort Irwin National Training Center were described and categorized by their general characteristics, discharge, geophysical properties, and water quality between 2015 and 2017. The data collected establish a modern (2017) baseline of hydrologic conditions at the springs. Two types of springs were identified: (1) precipitation-fed upland springs (Cave, Desert King, Devoug
Authors
Jill N. Densmore, Drew C. Thayer, Meghan C. Dick, Peter W. Swarzenski, Lyndsay B. Ball, Celia Z. Rosecrans, Cordell Johnson

Science

Persistent Science Challenges in Legacy Mine Land Site Management

The objective of this project is to provide targeted research results to benefit cooperators managing legacy mine land sites in the western U.S. by addressing three persistent scientific challenges: (1) determining the contribution of mining-related metal sources to water quality degradation when substantial natural background metal sources are also present; (2) adequately characterizing key...
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Persistent Science Challenges in Legacy Mine Land Site Management

The objective of this project is to provide targeted research results to benefit cooperators managing legacy mine land sites in the western U.S. by addressing three persistent scientific challenges: (1) determining the contribution of mining-related metal sources to water quality degradation when substantial natural background metal sources are also present; (2) adequately characterizing key...
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Porphyry Copper Systems of the Boulder batholith, Montana

The project seeks to better understand the mineral systems of the Boulder batholith and surrounding region in Montana using new airborne geophysical data in conjunction with geologic mapping.
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Porphyry Copper Systems of the Boulder batholith, Montana

The project seeks to better understand the mineral systems of the Boulder batholith and surrounding region in Montana using new airborne geophysical data in conjunction with geologic mapping.
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USMIN Mineral Deposit Database

Our objective is to develop a national-scale, geospatial database that is the authoritative source of the most important mines, mineral deposits, and mineral districts of the United States.
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USMIN Mineral Deposit Database

Our objective is to develop a national-scale, geospatial database that is the authoritative source of the most important mines, mineral deposits, and mineral districts of the United States.
Learn More