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High-resolution magnetic and palynological records of the last deglaciation and Holocene from Lake Xiarinur in the Hunshandake Sandy Land, Inner Mongolia

文献类型：期刊论文

作者Tang, Ling1; Wang, Xisheng1; Zhang, Shuqin2; Chu, Guoqiang3; Chen, Yun1; Pei, Junling1; Sheng, Mei1; Yang, Zhenyu1
刊名HOLOCENE
出版日期2015-05-01
卷号25期号:5页码:844-856
关键词Asian summer monsoon effective moisture Hunshandake Sandy Land mineral magnetism paleoclimate pollen
DOI10.1177/0959683615571426
文献子类Article
英文摘要High-resolution mineral magnetic and pollen records from overlapping piston cores from Lake Xiarinur (42 degrees 37N, 115 degrees 28E) document detailed changes in environment and vegetation since the last deglaciation in the Hunshandake Sandy Land, Inner Mongolia. The formation of Lake Xiarinur commenced during the BOlling-AllerOd warming, as reflected by an abrupt shift in sedimentary facies from eolian sands to lacustrine sediments at a core depth of 3.5m (similar to 14.1 cal. kyr BP). The pollen records demonstrate that desert vegetation with sparse herbs occurred before 14.1 cal. kyr BP, which was succeeded by meadow grassland vegetation from similar to 14.1 -13.3 cal. kyr BP (the BOlling -AllerOd). A dramatic decrease in pollen concentration occurred between similar to 13.3 and 11.7 cal. kyr BP corresponding to the Younger Dryas. The remarkable increases in pollen and Pediastrum concentrations at similar to 11.7 cal. kyr BP suggest that the environment began to ameliorate, and the most humid conditions prevailed until similar to 8.5 cal. kyr BP. The maxima of magnetic concentration-dependent and magnetic-grain-size-dependent parameters, together with high pollen concentrations, between similar to 10 and 9 cal. kyr BP are interpreted as a brief interval of high annual precipitation. Our results indicate a stepwise decrease in effective moisture in the mid-Holocene and an accelerated drying trend in the late Holocene, characteristics typical of an East Asian summer monsoon-influenced region. The broad similarities between our data and other lake records from central-eastern Inner Mongolia, well-dated speleothem O-18 records from southern and central China, and summer insolation at 45 degrees N, support the idea that vegetation and climate changes in the Hunshandake Sandy Land were controlled mainly by fluctuations in the response of the East Asian monsoon to Northern Hemisphere summer insolation.
WOS关键词EAST-ASIAN MONSOON ; CHINESE LOESS PLATEAU ; NORTH-ATLANTIC CLIMATE ; YOUNGER DRYAS EVENT ; ENVIRONMENTAL-CHANGES ; MOISTURE EVOLUTION ; DAIHAI LAKE ; HULUN LAKE ; DEEP-SEA ; SEDIMENTS
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000352719600010
资助机构China Geological Survey(1212011120045) ; China Geological Survey(1212011120045) ; National Natural Science Foundation of China(41274074 ; National Natural Science Foundation of China(41274074 ; 41371219) ; 41371219) ; China Geological Survey(1212011120045) ; China Geological Survey(1212011120045) ; National Natural Science Foundation of China(41274074 ; National Natural Science Foundation of China(41274074 ; 41371219) ; 41371219)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62589]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
作者单位1.Chinese Acad Geol Sci, Inst Geomech, MLR Key Lab Paleomagnetism & Paleotecton Reconstr, Beijing 100081, Peoples R China
2.Jilin Univ, Res Ctr Paleontol & Stratig, Changchun, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100864, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Ling,Wang, Xisheng,Zhang, Shuqin,et al. High-resolution magnetic and palynological records of the last deglaciation and Holocene from Lake Xiarinur in the Hunshandake Sandy Land, Inner Mongolia[J]. HOLOCENE,2015,25(5):844-856.
APA Tang, Ling.,Wang, Xisheng.,Zhang, Shuqin.,Chu, Guoqiang.,Chen, Yun.,...&Yang, Zhenyu.(2015).High-resolution magnetic and palynological records of the last deglaciation and Holocene from Lake Xiarinur in the Hunshandake Sandy Land, Inner Mongolia.HOLOCENE,25(5),844-856.
MLA Tang, Ling,et al."High-resolution magnetic and palynological records of the last deglaciation and Holocene from Lake Xiarinur in the Hunshandake Sandy Land, Inner Mongolia".HOLOCENE 25.5(2015):844-856.

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来源：地质与地球物理研究所

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