Geosciences and Environmental Change Science Center

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GECSC researchers conduct multi-purpose geologic mapping and topical scientific studies to address issues concerning geologic, climatic, ecosystem, and land surface changes; human interactions with the environment; and physical, chemical, and biological characterization of the Earth's surface and upper crust. 

News

Wind turbines
April 19, 2018

Today, the U.S. Geological Survey (USGS) and the U.S. Department of Energy (DOE), in partnership with DOE’s Lawrence Berkeley National Laboratory and the American Wind Energy Association, released the United States Wind Turbine Database (USWTDB) and the USWTDB Viewer to access this new public dataset.

Lake Fork Creek below Sugarloaf dam near Leadville
November 17, 2017

Bringing together decades of research and mapping, the U.S. Geological Survey just released a geologic map and companion pamphlet featuring the Arkansas River Valley region in north-central Colorado.  

View of snow-capped Borah Peak, Idaho
October 24, 2017

A new tool that gives users the most detailed view yet of the world’s mountains is now available from the USGS. And it’s as close as your computer or cellphone.

Publications

Year Published: 2018

Geologic map of the Leadville North 7.5’ quadrangle, Eagle and Lake Counties, Colorado

The Leadville North 7.5’ quadrangle lies at the northern end of the Upper Arkansas Valley, where the Continental Divide at Tennessee Pass creates a low drainage divide between the Colorado and Arkansas River watersheds. In the eastern half of the quadrangle, the Paleozoic sedimentary section dips generally 20–30 degrees east. At Tennessee Pass and...

Ruleman, Chester A.; Brandt, Theodore R.; Caffee, Marc W.; Goehring, Brent M.
Ruleman, C.A., Brandt, T.R., Caffee, M.W., and Goehring, B.M., 2018, Geologic map of the Leadville North 7.5’ quadrangle, Eagle and Lake Counties, Colorado: U.S. Geological Survey Scientific Investigations Map 3400, 1:24,000, https://doi.org/10.3133/sim3400.

Year Published: 2018

Geologic map of the Weldona 7.5′ quadrangle, Morgan County, Colorado

The Weldona 7.5′ quadrangle is located on the semiarid plains of northeastern Colorado, along the South Platte River corridor where the river has incised into Upper Cretaceous Pierre Shale. The Pierre Shale is largely covered by surficial deposits that formed from alluvial, eolian, and hillslope processes operating in concert with environmental...

Berry, Margaret E.; Taylor, Emily M.; Slate, Janet L.; Paces, James B.; Hanson, Paul R.; Brandt, Theodore R.
Berry, M.E., Taylor, E.M., Slate, J.L., Paces, J.B., Hanson, P.R., and Brandt, T.R., 2018, Geologic map of the Weldona 7.5′ quadrangle, Morgan County, Colorado: U.S. Geological Survey Scientific Investigations Map 3396, 1 sheet, scale 1:24,000, https://doi.org/10.3133/sim3396.

Year Published: 2018

Geochemistry and mineralogy of late Quaternary loess in the upper Mississippi River valley, USA: Provenance and correlation with Laurentide Ice Sheet history

The midcontinent of North America contains some of the thickest and most extensive last-glacial loess deposits in the world, known as Peoria Loess. Peoria Loess of the upper Mississippi River valley region is thought to have had temporally varying glaciogenic sources resulting from inputs of sediment to the Mississippi River from different lobes...

Muhs, Daniel; Bettis, E. Arthur; Skipp, Gary L.
Muhs, D.R., Bettis, E.A. III, Skipp, G.L., 2018. Geochemistry and mineralogy of late Quaternary loess in the upper Mississippi River valley, USA: Provenance and correlation with Laurentide Ice Sheet history. Quaternary Science Reviews, v. 187, p. 235-269.