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(Article of periodic en Anglais - 2011)

Document title

Response of surface processes to climatic change in the dunefields and Loess Plateau of North China during the late Quaternary

Authors(s) and Affiliation(s)

LU H. (1 2) ; MASON J.A. (2) ; STEVENS T. (3) ; ZHOU Y. (4) ; YI S. (1) ; MIAO X. (5) ;
(1) School of Geographic & Oceanographic Sciences, Univ., Nanjing, CHINE
(2) Dep. of Geography, Univ. of Wisconsin, Madison, ETATS-UNIS
(3) Centre for Quaternary Research, Dep. of Geography, Univ. of London, Egham, ROYAUME-UNI
(4) College of Tourism and Environment, Shaanxi Normal Univ., Xi'an, CHINE
(5) Illinois State Geological Survey, Champaign, ETATS-UNIS

Abstract

The AA. evaluate the relationship between surface processes in the dunefields and the Loess Plateau using data from 4 late Quaternary loess-paleosol sequences in the Chinese Loess Plateau, and 23 stratigraphic sections in the Mu Us, Otindag, and Horqin dunefields. New optically stimulated luminescence (OSL) ages are presented here. Their comparison with loess accumulation rate reveals little evidence for synchronous change in the processes at millennial timescales in the late Quaternary. Explanations for the apparent lack of coupling include local variation in the trapping of dust and post-depositional preservation of the loess and dune sediments, in response to varying local environmental conditions. In addition, a substantial portion of the loess may be transported directly from source areas where dust emission has somewhat different climatic and geomorphic controls than aeolian sand activity within the dunefields.

Source

Article of periodic

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

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

Millesime : 2011, vol. 36, no12 [pp. 1590-1603]

Bibliographic references : 2 p.

Collation : 5 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.2168

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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