200,000 years of climate change recorded in eolian sediments of the High Plains of eastern Colorado and western Nebraska
Published:January 01, 1999
Daniel R. Muhs, James B. Swinehart, David B. Loope, John N. Aleinikoff, Josh Been, 1999. "200,000 years of climate change recorded in eolian sediments of the High Plains of eastern Colorado and western Nebraska", Colorado and Adjacent Areas, David R. Lageson, Alan P. Lester, Bruce D. Trudgill
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Loess and eolian sand cover vast areas of the western Great Plains of Nebraska, Kansas and Colorado (Fig. 1). In recent studies of Quaternary climate change, there has been a renewed interest in loess and eolian sand. Much of the attention now given to loess stems from new studies of long loess sequences that contain detailed records of Quaternary glacial-interglacial cycles, thought to be a terrestrial equivalent to the foraminiferal oxygen isotope record in deep-sea sediments (Fig. 2). Loess is also a direct record of atmospheric circulation, and identification of loess paleowinds in the geologic record can test atmospheric general circulation models. Until recently, eolian sand on the Great Plains had received little attention from Quaternary geologists. The past decade has seen a proliferation of studies of Great Plains dune sands, and many studies, summarized below, indicate that landscapes characterized by eolian sand have had dynamic histories.
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Colorado and Adjacent Areas
This first volume in the series includes trips held in conjunction with the 1999 Annual Meeting in Denver, Colorado, with more than 12 GSA-sponsored field trip guides presented in one volume. This year, the GSA Field Guide exposes readers to the beauty and diversity of the Colorado region, including trips focusing on sedimentology, hydrogeology, coal areas, tectonics, and other disciplines.