Deglacial and Holocene archaeal lipid-inferred paleohydrology and paleotemperature history of Lake Qinghai, northeastern Qinghai-Tibetan Plateau

ISL OpenIR > 青海盐湖研究所知识仓储

	Deglacial and Holocene archaeal lipid-inferred paleohydrology and paleotemperature history of Lake Qinghai, northeastern Qinghai-Tibetan Plateau
	Wang, Huanye 1,2,3; Dong, Hailiang 4,5; Zhang, Chuanlun L.6,7; Jiang, Hongchen 8; Liu, Zhonghui 9; Zhao, Meixun 10; Liu, Weiguo 1,11
	2015
发表期刊	QUATERNARY RESEARCH
卷号	83 期号:1 页码:116-126
关键词	Archaeal Lipids Thaumarchaeol Ace Tex86 Lake Level Salinity Paleotemperature Paleoclimate Patterns Lake Qinghai Qinghai-tibetan Plateau
摘要	We investigate the distribution of archaeal lipids in a 5.8-m-long sedimentary core recovered from Lake Qinghai to extract regional hydroclimate and temperature signals since the last deglaciation for this important region. The paleohydrology was reconstructed from the relative abundance of thaumarchaeol (%thaum) and the archaeol and caldarchaeol ecometric (ACE) index. The %thaum-inferred lake-level record was extended to deglaciation, showing three periods (11.9-13.0, 14.1-14.7 and 15.1-17.2 cal ka BP) with relatively higher lake levels than those during the early Holocene. The ACE record demonstrates three periods (10.6-112, 132-13.4 and 17.4-17.6 cal ka BP) of elevated salinity when the lake was shallow. Filtered TEX86 record based on archaeal lipid distributions corresponded to relatively higher lake levels, implying that a certain lake size is required for using the TEX86 paleothermometer. At 1-4 cal ka BP, the reconstructed temperature fluctuated significantly and correlated negatively with inferred lake level, indicating that lake temperature and hydrological change might be coupled during this period. We attribute this co-variance to the importance of summer temperature in controlling evaporation for this arid/semi-arid region. Moreover, our results indicate that archaeal lipids have potential in reconstructing paleoclimate patterns from lacustrine sedimentary cores, but the data should be interpreted with care. (C) 2014 University of Washington. Published by Elsevier Inc. All rights reserved.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5737
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Chinese Acad Sci, IEE, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lake, Key Lab Salt Lake Resources & Chem, Xining 810008, Qinghai, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 5.Miami Univ, Dept Geol & Environm Earth Sci, Oxford, OH 45056 USA 6.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 7.Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA 8.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 9.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 10.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266100, Peoples R China 11.Xi An Jiao Tong Univ, Sch Human Settlement & Civil Engn, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huanye,Dong, Hailiang,Zhang, Chuanlun L.,et al. Deglacial and Holocene archaeal lipid-inferred paleohydrology and paleotemperature history of Lake Qinghai, northeastern Qinghai-Tibetan Plateau[J]. QUATERNARY RESEARCH,2015,83(1):116-126.
APA	Wang, Huanye.,Dong, Hailiang.,Zhang, Chuanlun L..,Jiang, Hongchen.,Liu, Zhonghui.,...&Liu, Weiguo.(2015).Deglacial and Holocene archaeal lipid-inferred paleohydrology and paleotemperature history of Lake Qinghai, northeastern Qinghai-Tibetan Plateau.QUATERNARY RESEARCH,83(1),116-126.
MLA	Wang, Huanye,et al."Deglacial and Holocene archaeal lipid-inferred paleohydrology and paleotemperature history of Lake Qinghai, northeastern Qinghai-Tibetan Plateau".QUATERNARY RESEARCH 83.1(2015):116-126.