Records of the Mid-Brunhes Event in Chinese loess-paleosol sequences

doi:10.1016/j.palaeo.2020.109596

IEECAS OpenIR > 古环境研究室

	Records of the Mid-Brunhes Event in Chinese loess-paleosol sequences
	Xu, Xinwen 1,2; Qiang, Xiaoke2 ; Hu, Sheng 1; Zhao, Hui 2; Fu, Chaofeng 3; Zhao, Qing 4
通讯作者	Qiang, Xiaoke(qiangxk@loess.llqg.ac.cn)
	2020-04-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	543 页码:9
摘要	The Mid-Brunhes Event (MBE) was a climatic transition characterized by warmer temperatures, smaller ice volume and higher sea levels during interglacials since marine oxygen isotope stage (MIS) 11. Data from numerous long-term sedimentary sequences indicate that the MBE was expressed throughout the whole earth surface; however, conflicting evidence in terrestrial sequences from middle/high latitudes of the Northern Hemisphere mean that the event's existence and global synchronicity are a matter of debate. To address this problem, we investigated the MBE signal in paleoclimate records from the Chinese Loess Plateau (CLP). Higher magnetic susceptibility (chi) since S5 in the Luochuan, Yimaguan, and Lingtai sections, and since S4 in the Jingyuan and Xijin sections indicate that East Asian Summer Monsoon (EASM) precipitation strongly affected the central CLP since MIS 13, but exerts a relatively weak influence on the northwestern CLP until MIS 11 during the past 800 kyr. From MIS 13 to MIS 11, shrinkage of the Northern Hemisphere ice sheet resulted in northward movement of the Intertropical Convergence Zone and elevated sea-level. An similar to 25 m sea-level rise could have caused the coastline of the Asian continent to shift northwestward by similar to 50-100 km. These changes induced extension of EASM-domain areas into the northwestern CLP from the central CLP. The response to the MBE in loess-paleosol sequence of the CLP was expressed by variations in the geographic extent of EASM-domain areas, rather than changes in the EASM intensity. The MBE emerged at MIS 11 in the CLP, and was globally synchronous.
关键词	Chinese Loess Plateau East Asian Summer Monsoon Sea level change Monsoon domain areas
DOI	10.1016/j.palaeo.2020.109596
关键词[WOS]	ASIAN SUMMER MONSOON ; SEA-LEVEL ; GLOBAL MONSOON ; GLACIAL CYCLES ; PLEISTOCENE ; CLIMATE ; VARIABILITY ; INSOLATION ; HOLOCENE ; PLATEAU
收录类别	SCI ; SCI
语种	英语
资助项目	National Science Foundation of China[41402151] ; National Science Foundation of China[41572164] ; National Science Foundation of China[41272208] ; Open Fund of State Key Laboratory of Loess and Quaternary Geology[SKLLQG1218] ; National Natural Science Foundation of China[91855211]
WOS研究方向	Physical Geography ; Geology ; Paleontology
项目资助者	National Science Foundation of China ; Open Fund of State Key Laboratory of Loess and Quaternary Geology ; National Natural Science Foundation of China
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000518707600013
出版者	ELSEVIER
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12641
专题	古环境研究室
通讯作者	Qiang, Xiaoke
作者单位	1.Northwest Univ, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Changan Univ, Minist Educ China, Key Lab Western Mineral Resources & Geol Engn, Xian 710054, Peoples R China 4.Xian Univ Posts & Telecommun, Sch Cyberspace Secur, Xian 710121, Peoples R China
推荐引用方式 GB/T 7714	Xu, Xinwen,Qiang, Xiaoke,Hu, Sheng,et al. Records of the Mid-Brunhes Event in Chinese loess-paleosol sequences[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,543:9.
APA	Xu, Xinwen,Qiang, Xiaoke,Hu, Sheng,Zhao, Hui,Fu, Chaofeng,&Zhao, Qing.(2020).Records of the Mid-Brunhes Event in Chinese loess-paleosol sequences.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,543,9.
MLA	Xu, Xinwen,et al."Records of the Mid-Brunhes Event in Chinese loess-paleosol sequences".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 543(2020):9.