Holocene climatic change revealed by aeolian deposits from the Gonghe Basin, northeastern Qinghai-Tibetan Plateau (SCI)

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	Holocene climatic change revealed by aeolian deposits from the Gonghe Basin, northeastern Qinghai-Tibetan Plateau (SCI)
	Liu B. ; Jin H. L. ; Sun L. Y. ; Sun Z. ; Su Z. Z. ; Zhang C. X.
刊名	Quaternary International
	2013
卷号	296 页码:231-240
ISSN号	ISBN/1040-6182
英文摘要	A climate record for the Gonghe Basin in the northeastern Qinghai-Tibetan Plateau during the Holocene period was determined from a 3.90 m aeolian deposit. As revealed by the variation of proxies, including sedimentary facies, magnetic susceptibility, the total organic carbon (TOC) content, grain size, and geochemical parameters, the regional climatic evolution during this period can be divided into the following stages. There was a cold and dry phase in 11.8-10.1 ka, probably related to the Younger Dryas (YD) event prior to the Holocene. An optimum stage with relatively warmer and wetter climate dominated the region between 10.1 ka and 8.7 ka. The climate tended to relatively dry condition from 8.7 ka to 4.7 ka, although weak paleosol (weakly developed paleosol) developed during this period. This is inconsistent with the Megathermal Maximum in the Holocene or Holocene Optimum. A relatively warm and wet climate emerged in 4.7-0.7 ka, and an obviously cold and dry stage emerged since 0.7 ka. Thereafter, the regional climate became warmer. In addition, eight cold events were recorded, including the YD event (around 11.8 ka), 9.8-9.5 ka, 9.2-8.7 ka, 8.1-7.6 ka, 7.0-6.1 ka, 5.3-4.7 ka, 3.1-1.5 ka, and since 0.7 ka. These events are coincident with cold phases revealed by aeolian depositions and lake records in the northeastern Qinghai-Tibetan Plateau, and also with the evidence of deteriorated climate phases in the high and low latitudes of the Northern Hemisphere on a millennial scale, such as in Hongyuan peat and drift-ice tracers in the North Atlantic Ocean in the Holocene. (C) 2012 Elsevier Ltd and INQUA. All rights reserved.
收录类别	(SCI)
公开日期	2014-12-19
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/22871]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Liu B.,Jin H. L.,Sun L. Y.,et al. Holocene climatic change revealed by aeolian deposits from the Gonghe Basin, northeastern Qinghai-Tibetan Plateau (SCI)[J]. Quaternary International,2013,296:231-240.
APA	Liu B.,Jin H. L.,Sun L. Y.,Sun Z.,Su Z. Z.,&Zhang C. X..(2013).Holocene climatic change revealed by aeolian deposits from the Gonghe Basin, northeastern Qinghai-Tibetan Plateau (SCI).Quaternary International,296,231-240.
MLA	Liu B.,et al."Holocene climatic change revealed by aeolian deposits from the Gonghe Basin, northeastern Qinghai-Tibetan Plateau (SCI)".Quaternary International 296(2013):231-240.