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(Article of periodic en Anglais - 2008)

Document title

Environmental change inferred from Rb and Sr of lacustrine sediments in Huangqihai Lake, Inner Mongolia

Authors(s) and Affiliation(s)

CHEN L. (1) ; SHEN H. (1) ; JIA Y. (2) ; WU J. (3) ; LI X. (4) ; WEI L. (4) ; WANG P. (5) ;
(1) Environment and Tourism College, Normal Univ., Linyi, CHINE
(2) School of Geography and Environment, Jiangxi Normal University, Nanchang, CHINE
(3) Nanjing Institute of Geography and Limnology, Nanjing, CHINE
(4) School of Geographic and Oceanic Sciences, Univ., Nanjing, CHINE
(5) Institute of Tibetan Plateau Research, Beijing, CHINE

Abstract

Based on the geochemical elements Rb and Sr in sediments with 3 different grain size fractions from profile H3 on the northern lacustrine bottomland 13 m above the Huangqihai Lake surface in 1986, the paper investigates the record of palaeolake stand state, sedimentary environmental evolution, and winter monsoon change. The results showed that the elements and the ratios varied regularly with the grain size. The ratio of Rb/Sr in the fraction <20μm from the lake sediments reflected the strengthening of the weathering in the deposition sites. It is a good indicator of the summer monsoon-induced weathering and pedogenesis fluctuations and can be used to reconstruct the conditions of the paleoclimate and paleoenvironment

Source

Article of periodic

published at : Journal of geographical sciences. Acta geographica sinica / ISSN 1009-637X

Editor : CHINE

Millesime : 2008, vol. 18, no3 [pp. 373-384]

Bibliographic references : 28 ref.

Collation : 6 fig., 1 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-008-0373-1

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