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(Article of periodic en Anglais - 2009)

Document title

Present and Late Pleistocene equilibrium line altitudes in Changbai Mountains, Northeast China

Authors(s) and Affiliation(s)

ZHANG W. (1) ; CUI Z. (2) ; YAN L. (1) ;
(1) College of Urban and Environment Sciences, Liaoning Normal Univ., Dalian, CHINE
(2) Dep. of Geography, Peking Univ., Beijing, CHINE

Abstract

According to the glacial landforms and deposits with the optically stimulated luminescence (OSL) dating results, two glacial stages of the last glacial cycle (LGC) and Late Glacial were identified. The Late Glacial stage (Meteorological Station glacier advance) took place about 11 ka, and the last glacial maximum (LGM), named Black Wind Mouth glacier advance, occurred at 20 ka. Based on the Ohmura’s formula in which there is a relationship between summer (JJA) atmospheric temperature (T) and the annual precipitation (P) at ELA, the present theoretical equilibrium line altitude (ELAt) in Changbai Mountains was 3380±100 m. Six methods of accumulation-area ratio (AAR) were used for calculation of the former ELAs in different stages. Results and discussion about the ELA, the snowlines during the LGM and the Late Glacial on northern slope and on western slope. Compared with Taiwanese and Japanese mountains in East Asia during the LGM, the effect of the uplift on ELA in Changbai Mountains during the glaciations (i.e. 20 m uplift in the LGM and 11 m in the Late Glacial) is not obvious

Source

Article of periodic

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

Editor : CHINE

Millesime : 2009, vol. 19, no3 [pp. 373-383]

Bibliographic references : 2 p.

Collation : 4 fig., 1 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-009-0373-9

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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