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(Article of periodic en Anglais - 2010)

Document title

Upper Pleistocene-Holocene geomorphic changes dictating sedimentation rates and historical land use in the valley system of the Chifeng region, Inner Mongolia, northern China

Authors(s) and Affiliation(s)

AVNI Y. (1) ; ZHANG J.F. (2) ; SHELACH G. (3) ; ZHOU L.P. (2) ;
(1) Geological Survey of Israel, Jerusalem, ISRAEL
(2) Lab. for Earth Surface Processes Dep. of Geography, Peking Univ., Beijing, CHINE
(3) Dep. of East Asian Studies, Hebrew Univ., Jerusalem, ISRAEL

Abstract

Based on 57 optically stimulated luminescence (OSL) ages of loess sediments, fluvial sand and floodplain deposits accumulated on the hill slopes and floodplains, the AA. conclude that during most of the Pleistocene period the region was blanketed by a thick layer of aeolian loess, as well as by alluvial and fluvial deposits. The loess section is divided into 2 main units that are separated by unconformity. During the Holocene, the erosion of the Pleistocene loess on the hills led to the burial of the valley floors by the redeposited sediments in the central part of the Chifeng Valley. This rapid accumulation and the frequent shifts of the courses of the river prevented the construction of permanent settlements in the valley floors, a situation which changed only with improved man-made control of the local rivers from the tenth century AD

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, no11 [pp. 1251-1268]

Bibliographic references : 1,5 p.

Collation : 10 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.1944

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