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(Article of periodic en Anglais - 2008)

Document title

Climate change triggered sedimentation and progressive tectonic uplift in a coupled piedmont-axial system : Cuyama Valley, California, USA

Authors(s) and Affiliation(s)

DELONG S.B. (1) ; PELLETIER J.D. (1) ; ARNOLD L.J. (2) ;
(1) University of Arizona, Geosciences Dept., Tucson, AZ 85721, ETATS-UNIS
(2) Oxford Lminescence Research Group, School of Geography and the Environment, Univ., Oxford, ROYAUME-UNI

Abstract

To better understand the timing and to attempt to interpret causes of past geomorphological processes on the Sierra Madre piedmont, the AA. mapped the surficial geology and dated alluvial deposits using radiacarbon, cosmogenic and optical dating methods. Fill terraces in Cuyama Valley formed by piedmont sediment accumulation followed by vertical incision and lateral erosion are fairly planar and often mantle strath bedrock surfaces. Their vertical spatial arrangement is a record of progressive regional tectonic uplift and concomitant axial Cuyama River channel incision migrating up tributary piedmont channels. Sedimentation was probably a result of increased precipitation that caused saturation landsliding in steep catchments

Source

Article of periodic

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

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

Millesime : 2008, vol. 33, no7 [pp. 1033-1046]

Bibliographic references : 1 p.

Collation : 8 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1600

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2008
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