Universität zu Köln

Khazin, L. B., Khazina, I. V., Krivonogov, S. K., Kuzmin, Ya. V., Prokopenko, A. A., Yi, S. and Burr, G. S. (2016). Holocene climate changes in southern West Siberia based on ostracod analysis. Russ. Geol. Geophys., 57 (4). S. 574 - 586. NOVOSIBIRSK: RUSSIAN ACAD SCIENCES, SIBERIAN BRANCH, VS SOBOLEV INST GEOL & MINEROL. ISSN 1878-030X

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Abstract

The study presents a summary of the latest data on ostracod microfaunas from Middle-Upper Holocene lacustrine deposits of southern West Siberia collected from lakes Malye Chany, Bol'shaya Lozhka, Beloe, and paleolake Chicha. A total of 28 ostracod species were identified. The identified ostracod assemblages reveal local variations in the lake ecosystems as well as general trends, which can be correlated with both regional and global climate changes. A cooling episode during the second half of the Subboreal is marked by the transition from a warm-water mesohaline assemblage to cold-water candonid ostracods at ca. 3.4 cal ka BP. The widespread occurrence of mesopolythermophilic ostracod species at 1.9-0.6 cal ka BP indicates the end of cooling and lowering of lake-water level. From 0.6 cal ka BP to present, the ostracod assemblages area characterized by the high specific diversity, which is probably an indication of the increased variability of aquatic ecosystems due to fluctuations in salinity and water levels of the lakes. Climate changes identified by ostracod assemblages are consistent with the climatic trend constrained by early palynological studies. (C) 2016, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Khazin, L. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Khazina, I. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Krivonogov, S. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kuzmin, Ya. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Prokopenko, A. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yi, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Burr, G. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-279627
DOI:	10.1016/j.rgg.2015.05.012
Journal or Publication Title:	Russ. Geol. Geophys.
Volume:	57
Number:	4
Page Range:	S. 574 - 586
Date:	2016
Publisher:	RUSSIAN ACAD SCIENCES, SIBERIAN BRANCH, VS SOBOLEV INST GEOL & MINEROL
Place of Publication:	NOVOSIBIRSK
ISSN:	1878-030X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DYNAMICS; REGION Multiple languages Geosciences, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/27962