气候变化领域集成服务门户(CCPortal): Archaeal lipid-inferred paleohydrology and paleotemperature of Lake Chenghai during the Pleistocene-Holocene transition

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DOI	10.5194/cp-16-833-2020
	Archaeal lipid-inferred paleohydrology and paleotemperature of Lake Chenghai during the Pleistocene-Holocene transition
	Sun W.; Zhang E.; Chang J.; Shulmeister J.; I. Bird M.; Zhao C.; Jiang Q.; Shen J.
发表日期	2020
ISSN	18149324
起始页码	833
结束页码	845
卷号	16 期号:3
英文摘要	Over the past decades, paleoenvironmental studies in the Indian summer monsoon region have mainly focused on precipitation change, with few published terrestrial temperature records from the region. We analysed the distribution of isoprenoid glycerol dialkyl glycerol tetraethers (isoGDGTs) in the sediments of Lake Chenghai in southwest China across the Pleistocene-Holocene transition, to extract both regional hydrological and temperature signals for this important transition period. The lake level was reconstructed from the relative abundance of crenarchaeol in isoGDGTs (%cren) and the crenarchaeol0=crenarchaeol ratio. The %cren-inferred lake level identified a single lowstand (15.4- 14.4 ka cal BP), while the crenarchaeol0=crenarchaeol ratio suggests a relatively lower lake level between 15.4-14.4 and 12.5-11.7 ka cal BP, corresponding to periods of weakened ISM during the Heinrich 1 and Younger Dryas cold event. A filtered TetraEther indeX consisting of 86 carbon atoms (TEX86 index) revealed that lake surface temperature was similar to present-day values during the last deglacial period and suggests a substantial warming of 4 C from the early Holocene to the mid-Holocene. Our paleotemperature record is generally consistent with other records in southwest China, suggesting that the distribution of isoGDGTs in Lake Chenghai sediments has potential for quantitative paleotemperature reconstruction. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	deglaciation; isoprenoid; lake level; lipid; lowstand; monsoon; paleohydrology; paleotemperature; relative abundance; surface temperature; warming; water temperature; Younger Dryas; Chenghai Lake; China; Yunnan; Archaea
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146716
作者单位	State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Science, Xian, 710061, China; School of Earth and Environmental Sciences, University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; School of Earth and Environment, University of Canterbury, Private Bag 4800, Christchurch, New Zealand; ARC Centre of Excellence for Australian Biodiversity and Heritage, James Cook University, P.O. Box 6811, Cairns, QLD 4870, Australia; College of Science and Engineering, James Cook University, P.O. Box 6811, Cairns, QLD 4870, Australia; School of Geography Sciences, Nantong University, Nantong, 226007, China
推荐引用方式 GB/T 7714	Sun W.,Zhang E.,Chang J.,et al. Archaeal lipid-inferred paleohydrology and paleotemperature of Lake Chenghai during the Pleistocene-Holocene transition[J],2020,16(3).
APA	Sun W..,Zhang E..,Chang J..,Shulmeister J..,I. Bird M..,...&Shen J..(2020).Archaeal lipid-inferred paleohydrology and paleotemperature of Lake Chenghai during the Pleistocene-Holocene transition.Climate of the Past,16(3).
MLA	Sun W.,et al."Archaeal lipid-inferred paleohydrology and paleotemperature of Lake Chenghai during the Pleistocene-Holocene transition".Climate of the Past 16.3(2020).