Mid-Holocene climate change in the eastern Xinjiang region indicated by the grain size and stable isotope record from Lake Barkol, northwest China

Yanbin Lu, Cheng Bang An, Zongli Wang, Jiaju Zhao, Haitao Wei, Shichen Tao, Wei Huang, Minmin Ma

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A sediment core from Lake Barkol located in the eastern Xinjiang autonomous region, northwest China, provided a high-resolution record of environmental change covering the last ~8. 6 cal ka BP. Three major climate stages, 8. 6-7. 1, 7. 1-2. 0 and from 2. 0 cal ka BP to the present, were divided by grain size and the authigenic carbonate stable isotope of the lake sediment. Climatic drought during the period 7. 1-4. 5 cal ka BP, deduced from Lake Barkol, prevailed in the mid-Holocene climate in northern Xinjiang and northwest Mongolia. In contrast, it was wet in central Xinjiang, northwest India and the Middle East during the same period. The climatic difference between northern and southern arid central Asia demonstrates the southward shifting of the Westerlies, which indicates the potential contribution of the Siberian high in the mid-Holocene.

Original languageEnglish (US)
Pages (from-to)2163-2169
Number of pages7
JournalEnvironmental Earth Sciences
Volume68
Issue number8
DOIs
StatePublished - Apr 2013

Bibliographical note

Funding Information:
Acknowledgments This research was jointly supported by the National Basic Research Program of China (973 Program) (2010CB950202) and China Postdoctoral Science Foundation under grants 2012M511992. We thank Laurence Smith for language correction and helpful remarks.

Keywords

  • Climate change
  • Grain size
  • Lake Barkol
  • Mid-Holocene
  • Stable isotope

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