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Geosciences and Environmental Change Science Center

The Geosciences and Environmental Change Science Center (GECSC) delivers critical science that supports Administrative and Departmental priorities. Through geologic mapping and Earth system research, GECSC provides essential data on the nation’s geologic resources, landscape dynamics, and surface processes—informing resource development, hazard mitigation, and land-use planning.

News

Earth Science Matters - Vol. 21 | Issue 1

Earth Science Matters - Vol. 21 | Issue 1

USGS Unveils New National Geologic Map

USGS Unveils New National Geologic Map

The Next Fueling Discovery Webinar Takes Place May 29

The Next Fueling Discovery Webinar Takes Place May 29

Publications

Tectonically driven integration of the 4.8 Ma Colorado River USA tracked with detrital sanidine and fish genetics Tectonically driven integration of the 4.8 Ma Colorado River USA tracked with detrital sanidine and fish genetics

The development of the continental-scale Colorado River system, western USA, from 8 to 4.8 Ma, is revealed using 60-40 Ma detrital sanidine tracer grains and fish phylogeny. Here we show that precursor paleoriver segments became integrated north to south as traced by 60-40 Ma sand grains that were derived from the north and sequentially appeared in the 25-8 Ma Browns Park Formation of...
Authors
K. E. Karlstrom, M. Heizler, A. Aslan, Ian William Hillenbrand, S. Cather, T. F. Turner, M. Osborne, C. D. Henry, L. J. Crossey

Glacier fed deltas and new age constraints for glacial Lake Grand Gorge in the northern Catskill Mountains of New York State, USA Glacier fed deltas and new age constraints for glacial Lake Grand Gorge in the northern Catskill Mountains of New York State, USA

Ice-dammed lakes were common along the southern margin of the Laurentide Ice Sheet during deglaciation. In the Schoharie Valley of the northern Catskill Mountains, New York, a 171 km2 lake known as glacial Lake Grand Gorge formed in an interlobate area. Previous researchers suggested that deltas developed into this glacial lake from meltwater supplied by the adjacent Hudson Lobe during
Authors
Andrew L. Kozlowski, Richard A. Frieman, Karl J. Backhaus, Hailey Forgeng, Robert Feranec, Shannon A. Mahan

Quantifying Landsat’s contributions to U.S. agricultural and forestry applications Quantifying Landsat’s contributions to U.S. agricultural and forestry applications

The Landsat program has provided over 54 years of multispectral imagery, contributing vital information for agricultural and forestry scientific research and operational activities. Freely available Landsat data have enabled scientists to analyze land use patterns, assess ecological impacts, and develop strategies for sustainable management. We explored Landsat’s pivotal role through the...
Authors
Ellen Wengert, Jordan Rowe, Shankar N. Ramaseri Chandra, Melanie K. Vanderhoof, Iris J. Garthwaite, Zhuoting Wu, Gregory Snyder, Kimberly A. Casey, Crista L. Straub, Daniel W. Opstal, Everett Hinkley
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