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.Â
News
Low-Level Flights to Image 3D Geology in Northern Arkansas
Editor: In the public interest and in accordance with the Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project. Your assistance in informing the local communities is appreciated.
Big Thompson Floods of 1976 and 2013 - A Visual Comparison
The Big Thompson Floods of 1976 and 2013 shown visually. The inundation images reflect the location and peak streamflows at certain points between Estes Park and Loveland, Colorado.
Follow National Wildfire Information in the Palm of Your Hand: GeoMAC Goes Mobile
The public can now access information about active wildfires across the country using a smartphone.
Publications
Dissolved organic matter in the deep TALDICE ice core: A nano-UPLC-nano-ESI-HRMS method
Trace organic compounds in deep ice cores supply important paleoclimatic information. Untargeted analyses of dissolved organic matter provide an overview of molecular species in ice samples however, sample volumes usually required for these analyses are generally not available from deep ice cores. Here, we developed an analytical method using a...
Zangrando, Roberta; Zanella, Veronica; Karroca, Ornela; Barbaro, Elena; Kehrwald, Natalie; Battistel, Dario; Gambaro, Andrea; Barbante, Carlo Protracted multipulse emplacement of a post-resurgent pluton: The case of Platoro caldera complex (Southern Rocky Mountain volcanic field, Colorado)
Many eroded calderas expose associated postcollapse plutons, but detailed fieldworkâsupported studies have rarely focused on the internal structure that can contribute to understanding of emplacement dynamics. The Alamosa River monzonite pluton is a postcollapse intrusion at the Platoro caldera complex that erupted six large ignimbrites between 30...
Tomek, Filip; Gilmer, Amy; Petronis, M. S.; Lipman, Peter W.; Foucher, M. S. Status of three-dimensional geological mapping and modeling activities in the U.S. Geological Survey
The U.S. Geological Survey (USGS), created in 1879, is the national geological survey for the United States and the sole science agency within its cabinet-level bureau, the Department of the Interior. The USGS has a broad mission, including: serving the Nation by providing reliable scientific information to describe and understand the Earth;...
Sweetkind, Donald; Graymer, Russell; Higley, D.K.; Boyd, Oliver S.