Faculty Publications

Eolian And Soil Stratigraphy At A Paleoindian Site Along The South Platte River Valley, Nebraska, U.S.A

Document Type

Article

Journal/Book/Conference Title

Geoarchaeology

Volume

18

Issue

1

First Page

145

Last Page

159

Abstract

Eolian and soil stratigraphy and radiocarbon ages of soil humates were used to reconstruct landscape evolution at a site (25KH67) in western Nebraska along the South Platte River. The site is on the bluff of a short, deeply incised, dune-blocked tributary to the South Platte. The Paleoindian component is in the lower part of the Brady Soil. The age of the lower Brady Soil where cultural material was recovered is 10,360 yr B.P., and the age of the upper Brady Soil is 6090 yr B.P. The Brady Soil formed over a longer interval at site 25KH67 than at other upland localities in southern Nebraska and Kansas. Three episodes of eolian deposition occurred after 6090 yr B.P. Discovery of additional Paleoindian sites along the South Platte River valley and across the central Great Plains will be hampered by Holocene eolian deposits that blanket the Brady Soil. © 2003 Wiley Periodicals, Inc.

Department

Department of Geography

Original Publication Date

1-1-2003

DOI of published version

10.1002/gea.10053

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