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(Article of periodic en Anglais - 2012)

Document title

Evaluation of high-resolution elemental analyses of Chinese loess deposits measured by X-ray fluorescence core scanner

Authors(s) and Affiliation(s)

LIANG L. (1 2) ; SUN Y. (1) ; YAO Z. (3) ; LIU Y. (3) ; WU F. (1) ;
(1) State Key Lab. of Loess and Quaternary Geology, Inst. of Earth Environment, CAS, Xi'an, CHINE
(2) Graduate Univ. of Chinese Academy of Sciences, Beijing, CHINE
(3) Key Lab. of Marine Sedimentology and Environment Geology, First Inst. of Oceanography, State Oceanic Administration, Qingdao, CHINE

Abstract

To investigate geochemical variations of loess sediments at millennial and centennial timescales, and their potential for recording abrupt climate change, powder and U-channel (long plastic single-boxes used to sub-sample the center of split core sections) samples were collected from the Gulang loess section on the northwestern Chinese Loess Plateau for conventional and scanning X-ray fluorescence (XRF) analyses. Results suggest that although 10 elements (Al, Si, K, Ca, Ti, Fe, Zn, Rb, Sr and Zr,) can be detected robustly using scanning XRF method, only 5 elements (Si, Ca, Fe, Sr and Zr) can be employed confidently to infer the chemical weathering and grain size sorting effects. Comparison of scanning XRF-derived elemental data with magnetic susceptibility, grain size and speleothem records indicates that high-resolution elemental records have great potential for evaluating rapid fluctuations of the East Asia monsoon

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 92 [pp. 75-82]

Bibliographic references : 1 p.

Collation : 7 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.11.010

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 26260737 : Permanent link - XML version
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