Xin Wang
Early Pleistocene climate in western arid central Asia inferred from loess-palaeosol sequences
Wang, Xin; Wei, Haitao; Taheri, Mehdi; Khormali, Farhad; Danukalova, Guzel; Chen, Fahu
Authors
Haitao Wei
Mehdi Taheri
Farhad Khormali
Guzel Danukalova
Fahu Chen
Abstract
Arid central Asia (ACA) is one of the most arid regions in the mid-latitudes and one of the main potential dust sources for the northern hemisphere. The lack of in situ early Pleistocene loess/dust records from ACA hinders our comprehensive understanding of the spatio-temporal record of aeolian loess accumulation and long term climatic changes in Asia as a whole. Here, we report the results of sedimentological, chronological and climatic studies of early Pleistocene loess-palaeosol sequences (LPS) from the northeastern Iranian Golestan Province (NIGP) in the western part of ACA. Our results reveal that: 1) Accumulation of loess on the NIGP commenced at ∼2.4-1.8 Ma, making it the oldest loess known so far in western ACA; 2) the climate during the early Pleistocene in the NIGP was semi-arid, but wetter, warmer, and less windy than during the late Pleistocene and present interglacial; 3) orbital-scale palaeoclimatic changes in ACA during the early Pleistoceneare in-phase with those of monsoonal Asia, a relationship which was probably related to the growth and decay of northern hemisphere ice sheets.
Journal Article Type | Article |
---|---|
Acceptance Date | Jan 6, 2016 |
Online Publication Date | Feb 3, 2016 |
Publication Date | Feb 3, 2016 |
Deposit Date | Oct 30, 2023 |
Publicly Available Date | Oct 31, 2023 |
Journal | Scientific Reports |
Electronic ISSN | 2045-2322 |
Publisher | Nature Research (part of Springer Nature) |
Peer Reviewed | Peer Reviewed |
Volume | 6 |
Article Number | 20560 |
DOI | https://doi.org/10.1038/srep20560 |
Public URL | https://uwe-repository.worktribe.com/output/11402369 |
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Early Pleistocene climate in western arid central Asia inferred from loess-palaeosol sequences
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Licence
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
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