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(Article of periodic en Anglais - 2011)

Document title

Palaeoclimatic information from stable water isotopes of Holocene ice wedges on the Dmitrii Laptev Strait, northeast Siberia, Russia

published at : Special Issue : Stable isotopes and geochemistry of ground ice

Authors(s) and Affiliation(s)

OPEL T. (1 2) ; DEREVIAGIN A.Y. (3) ; MEYER H. (1) ; SCHIRRMEISTER L. (1) ; WETTERICH S. (1) ;
(1) Alfred Wegener Inst. for Polar and Marine Research, Research Unit, Potsdam, ALLEMAGNE
(2) Dep. of Geography, Humboldt-Univ., Berlin, ALLEMAGNE
(3) Fac. of Geology, State Univ., Moscou, RUSSIE, FEDERATION DE

Abstract

The stable isotopic composition (&O 18, &D, d) of 3 Holocene-age ice wedges at the Dmitrii Laptev Strait was studied at high resolution in order to develop palaeoclimatic records. AMS C 14 ages of organic matter in the ice prove the Late Holocene age of the studied horizontal ice-wedge profiles and indicate syngenetic growth associated with sediment accumulation. A general Late Holocene winter warming trend is inferred from &O 18 data with periods of marked variability superimposed on the trend. This trend is accompanied by a shift in the d excess, probably caused by varying proportions of differing moisture sources for precipitation

Source

Thematical fascicle

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2011, vol. 22, no 1 [pp. 84-100]

Bibliographic references : 60 ref.

Collation : fig., tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.667

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