One and a Half Million Yearlong Aridity During the Middle Eocene in North-West China Linked to a Global Cooling Episode

doi:10.1029/2020JB021037

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	One and a Half Million Yearlong Aridity During the Middle Eocene in North-West China Linked to a Global Cooling Episode
	Zhang, Rui 1,2,3,4; Kravchinsky, Vadim A.1,2; Qin, Jie 1,2; Goguitchaichvili, Avto 5; Li, Jianxing 6
通讯作者	Kravchinsky, Vadim A.(vadim@ualberta.ca)
	2021-03-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
ISSN	2169-9313
卷号	126 期号:3 页码:14
摘要	The Eocene record of substantial aridification near Tibet was reported to mimic the global climate cooling trend, overwriting the previously proposed dominant role of the Tibetan Plateau uplift in the aridification (Li et al., 2018, https://doi.org/10.1038/s41467-018-05415-x). Here we present new paleoclimate data from the red clay sequence deposited between 40 and 50 Ma in Altun Shan at the northeastern edge of the Tibetan Plateau. After building an age model using a compilation of magnetostratigraphy and cyclostratigraphy, we demonstrate that our record of magnetic susceptibility in the Altun Shan red clay exhibits variations linked to eccentricity cycles. Our age model allows us to estimate the age of eight short geomagnetic events, cryprochrons, in Altun Shan. Further we show that the aridification interval in Altun Shan coincides with (i) a cooling event recorded in the global oxygen isotope record, (ii) a sea surface temperature record on the east Tasmanian plateau, and (iii) an aridity record in the surrounding sedimentary basins of Central Asia. The middle Eocene aridity and cooling reached its maximum 45.5-44 Ma.
关键词	Asian monsoon climate cooling cyclostratigraphy eccentricity cycles Eocene magnetostratigraphy
DOI	10.1029/2020JB021037
收录类别	SCI ; SCI
语种	英语
资助项目	Natural Sciences and Engineering Research Council of Canada (NSERC)[RGPIN-2019-04780] ; National Natural Science Foundation of China[41772027] ; National Natural Science Foundation of China[41372037] ; National Natural Science Foundation of China[41972035] ; National Natural Science Foundation of China[41950410574]
WOS研究方向	Geochemistry & Geophysics
项目资助者	Natural Sciences and Engineering Research Council of Canada (NSERC) ; National Natural Science Foundation of China
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000638091600062
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：6[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/361006/16303
专题	黄土与第四纪地质国家重点实验室（2010~）第四纪科学与全球变化卓越创新中心
通讯作者	Kravchinsky, Vadim A.
作者单位	1.Northwest Univ, State Key Lab Continental Dynam, Inst Cenozo Geol & Environm, Dept Geol, Xian, Peoples R China 2.Univ Alberta, Dept Phys, Geophys, Edmonton, AB, Canada 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 4.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global, Xian, Peoples R China 5.Univ Nacl Autonoma Mexico, Inst Geofis, Serv Arqueomagnet Nacl, Campus Morelia, Morelia, Michoacan, Mexico 6.China Geol Survey, Chengdu Ctr Geol Survey, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Rui,Kravchinsky, Vadim A.,Qin, Jie,et al. One and a Half Million Yearlong Aridity During the Middle Eocene in North-West China Linked to a Global Cooling Episode[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2021,126(3):14.
APA	Zhang, Rui,Kravchinsky, Vadim A.,Qin, Jie,Goguitchaichvili, Avto,&Li, Jianxing.(2021).One and a Half Million Yearlong Aridity During the Middle Eocene in North-West China Linked to a Global Cooling Episode.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,126(3),14.
MLA	Zhang, Rui,et al."One and a Half Million Yearlong Aridity During the Middle Eocene in North-West China Linked to a Global Cooling Episode".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 126.3(2021):14.