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(Article of periodic en Anglais - 2010)

Document title

Holocene flood histories in south-western USA

Authors(s) and Affiliation(s)

HARDEN T. (1) ; MACKLIN M.G. (2) ; BAKER V.R. (3) ;
(1) Dep. of Geology, State Univ. Oregon, Portland, ETATS-UNIS
(2) Centre for Catchment and Coastal Research, Univ., Aberystwyth, ROYAUME-UNI
(3) Dep. of Hydrology and water Ressources, Univ. of Arizona, Tucson, ETATS-UNIS

Abstract

This study combines the alluvial archive with flood records from bedrock reaches to generate a probability-based 12,000 year record of flooding in south-western USA. Using more than 700 14C-dated fluvial units, the analysis produces a high resolution (centennial) flood record. Seven episodes of increased flooding occurred. Bedrock reaches are found to record more frequent floods during the middle to late Holocene, while in alluvial rivers more flood units are dated to the early and middle Holocene. These differences are primarily the result of selective preservation with alluvial reaches tending to erode during periods characterised by very large floods. The results of this study clearly demonstrate the value of the Holocene fluvial archive for reconstructing regional, short-term hydro-climatic change in south-western USA

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2010, vol. 35, no6 [pp. 707-716]

Bibliographic references : 1,5 p.

Collation : 9 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1983

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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