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Geosciences and Environmental Change Science Center

Geosciences and Environmental Change Science Center (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

Friday's Findings - April 26, 2024

Friday's Findings - April 26, 2024

Media Alert: USGS field crews to study avalanche prone regions using airborne techniques near Durango

Media Alert: USGS field crews to study avalanche prone regions using airborne techniques near Durango

In monarch butterfly decline mystery, scientists rule out habitat loss in migration zone

In monarch butterfly decline mystery, scientists rule out habitat loss in migration zone

Publications

Late Triassic paleogeography of southern Laurentia and its fringing arcs: Insights from detrital zircon U-Pb geochronology and Hf isotope geochemistry, Auld Lang Syne basin (Nevada, USA)

Fluvial strata of the Upper Triassic Chinle Formation and Dockum Group, exposed across the Western Interior of North America, have long been interpreted to record a transcontinental river system that connected the ancestral Ouachita orogen of Texas and Oklahoma, USA, to the Auld Lang Syne basin of northwestern Nevada, USA, its inferred marine terminus. Fluvial strata are well-characterized by exis
Authors
Theresa Maude Schwartz, Sandra J. Wyld, Joseph Colgan, Douglas W. Prihar

Recent advances in characterizing the crustal stress field and future applications of stress data: Perspectives from North America

The stress field controls patterns of crustal deformation, including which faults are likeliest to cause earthquakes or transmit fluids. Since the 1950s, maps of maximum horizontal stress (SHmax) orientations have advanced dramatically, and the style of faulting (relative principal stress magnitudes) has recently been mapped in some regions as well. This perspectives paper summarizes developments
Authors
Jens-Erik Lundstern

Land-use and land-cover change in the Lower Rio Grande Ecoregions, Texas, 2001–2011

Urban growth and other land-use changes were examined in the Lower Rio Grande Valley and Alluvial Floodplain ecoregions in Texas, along the U.S.-Mexico border. The analysis focused on understanding the types and causes of land change as well as the recovery of natural land-cover types between years 2001 and 2011. The purpose was to develop improved capabilities for understanding land change dynami
Authors
Mark A. Drummond, Michael P. Stier, Jamie L. McBeth