Interior Western United States
The GSA Annual Meeting in Salt Lake City provided a large and diverse terrain for field trips—from the Basin and Range to the Rocky Mountains, from the Snake River Plain, across the Colorado Plateau, to the Mojave Desert. This volume contains 22 field trip articles, nearly all of those run at the 2005 meeting. All combine the latest research with useful road logs to spectacular and often classic geologic settings. The regional tour has a core of structure and stratigraphy-paleontology contributions, and is rounded off with volcanic, glacial, lacustrine, fluvial geomorphology, neotectonic, geologic hazard, and geoarchaeology articles.
Basaltic volcanism of the central and western Snake River Plain:: A guide to field relations between Twin Falls and Mountain Home, Idaho
Published:January 01, 2005
John W. Shervais, John D. Kauffman, Virginia S. Gillerman, Kurt L. Othberg, Scott K. Vetter, Ruth Hobson V., Meghan Zarnetske, Matthew F. Cooke, Scott H. Matthews, Barry B. Hanan, 2005. "Basaltic volcanism of the central and western Snake River Plain:: A guide to field relations between Twin Falls and Mountain Home, Idaho", Interior Western United States, Carol M. Dehler
Download citation file:
Basaltic volcanism in the Snake River Plain of southern Idaho has long been associated with the concept of a mantle plume that was overridden by North America during the Neogene and now resides beneath the Yellowstone plateau. This concept is consistent with the time-transgressive nature of rhyolite volcanism in the plain, but the history of basaltic volcanism is more complex. In the eastern Snake River Plain, basalts erupted after the end of major silicic volcanism. The basalts typically erupt from small shield volcanoes that cover up to 680 km2 and may form elongate flows that extend 50–60 km...