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(Article of periodic en Anglais - 2012)

Document title

Reconstructing fluvial, lacustrine and aeolian process dynamics in Western Mongolia

Authors(s) and Affiliation(s)

STOLZ C. (1) ; HÜLLE D. (2) ; HILGERS A. (2) ; GRUNERT J. (3) ; LEHMKUHL F. (4) ; DASCH D. (5) ;
(1) Dep. of Geography and its Didactics, Univ., Flensburg, ALLEMAGNE
(2) Dept. of Geography, Univ., Cologne, ALLEMAGNE
(3) Dep. of Geography, Jojannes Gutenberg Univ., Mainz, ALLEMAGNE
(4) Dep. of Geography, RWTH Univ., Aachen, ALLEMAGNE
(5) Mongolian Academy of Science, Ulaanbaatar, MONGOLIE

Abstract

By investigating the chronostratigraphy of interfingering fluvio-lacustrine and aeolian sediments at the eastern rim of the Mongol Els, valuable information can be derived for the reconstruction of geomorphological processes and forcing-response relations in the past. The floodplain is locally covered by lacustrine sediments representing an Early to Mid-Holocene lake only a few meters deep. This can be deduced from several 14C and OSL dates and tachymetric measurements, and is in accordance with high stands of other lakes in Western Mongolia. Relics of a lake sediment on top of an old dune 17 m above the floodplain have been OSL-dated,indicative of an Eemian age. At that time a large and deep lake must have covered the plain. The transition phase to more humid conditions, together with a relatively high humidity gradient, appears to have been morphodynamically very efficient

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2012, vol. 56, no3 [pp. 267-300]

Bibliographic references : 3 p.

Collation : 16 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2012/0078

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