Geology, Geophysics, and Geochemistry Science Center

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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.

Laboratories

Laboratories

Our center has several laboratories, ranging from geophysics to geochemistry to spectroscopy to scanning electron microscopes.

Center Laboratories

Science Branches

Our strong science portfolio integrates regional and economic geology with a broad range of geophysical, geochemical, analytical expertise. Our center has six scientific branches:

Analytical Geochemistry

Isotope and Aqueous Geochemistry

Applied Geochemistry

Geophysics and Spectroscopy

Economic and Framework Geology

Operations

Explore Our Science

News

Date published: April 18, 2019

USGS April 2 Open House in Silverton Colorado Well Received

On April 2, the USGS hosted an Open House in Silverton, Colorado, about planned airborne geophysical surveys in the Silverton region.

Date published: March 25, 2019

Low-flying Helicopter Survey to Map Subsurface Geology and Groundwater Near Silverton, Colorado

In the public interest, and in accordance with FAA regulations, the USGS is announcing this low-level airborne project. Your assistance in informing the local communities is appreciated.

Date published: February 5, 2019

POSTPONED due to weather: Ask Questions and Learn More About the Low-Level Helicopter Flying Above the Mississippi Alluvial Plain

Media:            Please join the U.S. Geological Survey, CGG Airborne and various partners for a demonstration of the low-flying helicopter and description of what scientists are seeking in and around the Mississippi Alluvial Plain.

Publications

Year Published: 2019

Rare earth element mineral deposits in the United States

Because of their unique special chemical properties, many of the metals in the group of rare earth elements (REEs) have essential applications in 21st century technologies. Examples of products that use REEs are cell phones, computers, fluorescent and light-emitting-diode lights, flat-screen television and computer monitors, and in high-strength...

Van Gosen, Bradley S.; Verplanck, Philip L.; Emsbo, Poul
Van Gosen, B.S., Verplanck, P.L., and Emsbo, Poul, 2019, Rare earth element mineral deposits in the United States (ver 1.1, April 15, 2019): U.S. Geological Survey Circular 1454, 16 p., https://doi.org/10.3133/cir1454.

Year Published: 2019

Effect of size-biased sampling on resource predictions from the three-part method for quantitative mineral resource assessment—A case study of the gold mines in the Timmins-Kirkland Lake area of the Abitibi greenstone belt, Canada:

The three-part method for quantitative mineral resource assessment is used by the U.S. Geological Survey to predict, within a specified assessment area, the number of undiscovered mineral deposits and the quantity of mineral resources in those undiscovered deposits. The effects of size-biased sampling on such predictions are evaluated in a case...

Ellefsen, Karl J.
Ellefsen, K.J., 2019, Effect of size-biased sampling on resource predictions from the three-part method for quantita-tive mineral resource assessment—A case study of the gold mines in the Timmins-Kirkland Lake area of the Abitibi greenstone belt, Canada: U.S. Geological Scientific Investigations Report 2018–5149, 15 p., https://doi.org/10.3133/sir20185149.

Year Published: 2019

Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska

Lakes in boreal lowlands cycle carbon and supply an important source of freshwater for wildlife and migratory waterfowl. The abundance and distribution of these lakes are supported, in part, by permafrost distribution, which is subject to change. Relationships between permafrost thaw and lake dynamics remain poorly known in most boreal regions....

Rey, David; Walvoord, Michelle Ann; Minsley, Burke; Rover, Jennifer; Singha, Kamini