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(Article of periodic en Anglais - 1999)

Document title

Dating fluvial terraces with 10Be and 26Al profiles : application to the Wind River, Wyoming

published at : Cosmogenic isotopes in geomorphology

Authors(s) and Affiliation(s)

HANCOCK G.S. ; ANDERSON R.S. ; CHADWICK O.A. ; FINKEL R.C. ;

Abstract

Dating depositional surfaces like terraces that are older than the range of 14C is difficult. The AA. employ a cosmogenic radionuclide (CRN) profile technique that addresses a major problem of CRN dating on such surfaces : nuclide inheritance. By measuring 10Be and 26Al profiles, the AA. constrain the exposure age and the mean CRN inheritance for the deposit. Here they report their attempts to date terraces along the Wind River, which are inferred to reflect oscillation between glacial and interglacial conditions in the headwaters, and compare the results with other dating methods

Source

Thematical fascicle

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 1999, vol. 27, no 1-2 [pp. 41-60]

Bibliographic references : 41 ref.

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1999.
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