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Article: OSL chronology of sand deposits and climate change of last 18ka in Gurbantunggut Desert, northwest China

TitleOSL chronology of sand deposits and climate change of last 18ka in Gurbantunggut Desert, northwest China
Authors
KeywordsClimate Change
Gpr Survey
Gurbantunggut
Osl Dating
Westerly Wind
Issue Date2011
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/2507
Citation
Journal Of Quaternary Science, 2011, v. 26 n. 8, p. 813-818 How to Cite?
AbstractThe development of the Gurbantunggut Desert is mainly controlled by the Westerly wind, and at present has little influence from Indian and Southeast Asian monsoons. A combined study using optically stimulated luminescence (OSL) dating, ground-penetrating radar (GPR) surveys and climatic proxies analysis was carried out in the southern part of the desert. The chronology extends back to 18ka and is constructed based on 16 OSL ages from boreholes in the linear dune body and the inter-dune area. The chronology suggests that sand deposition in the last 18ka experienced two rapid accumulation phases at 11 and 2.5ka ago which were also evident from the GPR surveys. These periods relate to increased aridity in the region. Five climate phases are identified from the last 18ka, based on the OSL chronology and climatic proxy analysis with grain size and magnetic susceptibility measurements. The deglacial period (18.3-10.4ka) is characterized by climate instability and possible glacial melting events. The Holocene Optimum peaked 8.5ka and terminated 3.6ka ago, when the regional climate became arid. OSL samples from the dune body cluster around 2.5ka, which indicates rapid advance/extension of dune bodies at this time. © 2011 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/151343
ISSN
2015 Impact Factor: 2.553
2015 SCImago Journal Rankings: 1.622
ISI Accession Number ID
Funding AgencyGrant Number
Research Grant Council of the HKSAR, China7035/06P
7035/07P
7028/08P
Funding Information:

The authors are grateful to Li Bo, Zhao Hui, Wang Zhenting, Li Guoliang, Li Zhizhong and Wu Shengli for their help with the fieldwork. We also thank Louisa Tsang for improving the English and Chiu Mei Li for her help in measuring the grain sizes. We thank Prof. David Thomas and an anonymous reviewer for comments. The study is financially supported by grants to SHL from the Research Grant Council of the HKSAR, China (Project Nos 7035/06P, 7035/07P and 7028/08P).

References

 

DC FieldValueLanguage
dc.contributor.authorLi, SHen_US
dc.contributor.authorFan, Aen_US
dc.date.accessioned2012-06-26T06:20:52Z-
dc.date.available2012-06-26T06:20:52Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of Quaternary Science, 2011, v. 26 n. 8, p. 813-818en_US
dc.identifier.issn0267-8179en_US
dc.identifier.urihttp://hdl.handle.net/10722/151343-
dc.description.abstractThe development of the Gurbantunggut Desert is mainly controlled by the Westerly wind, and at present has little influence from Indian and Southeast Asian monsoons. A combined study using optically stimulated luminescence (OSL) dating, ground-penetrating radar (GPR) surveys and climatic proxies analysis was carried out in the southern part of the desert. The chronology extends back to 18ka and is constructed based on 16 OSL ages from boreholes in the linear dune body and the inter-dune area. The chronology suggests that sand deposition in the last 18ka experienced two rapid accumulation phases at 11 and 2.5ka ago which were also evident from the GPR surveys. These periods relate to increased aridity in the region. Five climate phases are identified from the last 18ka, based on the OSL chronology and climatic proxy analysis with grain size and magnetic susceptibility measurements. The deglacial period (18.3-10.4ka) is characterized by climate instability and possible glacial melting events. The Holocene Optimum peaked 8.5ka and terminated 3.6ka ago, when the regional climate became arid. OSL samples from the dune body cluster around 2.5ka, which indicates rapid advance/extension of dune bodies at this time. © 2011 John Wiley & Sons, Ltd.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/2507en_US
dc.relation.ispartofJournal of Quaternary Scienceen_US
dc.subjectClimate Changeen_US
dc.subjectGpr Surveyen_US
dc.subjectGurbantungguten_US
dc.subjectOsl Datingen_US
dc.subjectWesterly Winden_US
dc.titleOSL chronology of sand deposits and climate change of last 18ka in Gurbantunggut Desert, northwest Chinaen_US
dc.typeArticleen_US
dc.identifier.emailLi, SH:shli@hku.hken_US
dc.identifier.authorityLi, SH=rp00740en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/jqs.1508en_US
dc.identifier.scopuseid_2-s2.0-81055149839en_US
dc.identifier.hkuros221352-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-81055149839&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume26en_US
dc.identifier.issue8en_US
dc.identifier.spage813en_US
dc.identifier.epage818en_US
dc.identifier.eissn1099-1417-
dc.identifier.isiWOS:000297752600005-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLi, SH=24438103700en_US
dc.identifier.scopusauthoridFan, A=35071227800en_US

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