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(Article of periodic en Anglais - 1997)

Document title

Late Holocene eolian activity in the mineralogically mature Nebraska Sand Hills

Authors(s) and Affiliation(s)

MUHS D.R. (1) ; STAFFORD T.W. ; SWINEHART J.B. ; COWHERD S.D. ; MAHAN A.S. ; BUSH C.A. ; MADOLE R.F. ; MAAT P.B. ;
(1) U.S. Geological Survey, Federal Center, Denver, ETATS-UNIS

Abstract

The age of sand dunes in the Nebraska Sand Hills has been controversial, with some investigators suggesting a full-glacial age and others suggesting that they were last active in the late Holocene. New radiocarbon ages of unaltered bison bones and organic-rich sediments suggest that eolian sand deposition occurred at least twice in the past 3000 C 14 yr B.P. in 3 widely separated localities and as many as 3 times in the past 800 C 14 yr at 3 other localities. Therefore, dunes of the Nebraska Sand Hills must have had a long history, probably extending over more than one glacial-interglacial cycle, and the potential for reactivation is high

Source

Article of periodic

published at : Quaternary research / ISSN 0033-5894 / CODEN QRESAV

Editor : Elsevier, San Diego, CA - ETATS-UNIS (1970)

Millesime : 1997, vol. 48, no2 [pp. 162-176]

Bibliographic references : 61 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 15739

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1998.
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