干旱区生态环境知识资源中心(Arid): A true polar wander trigger for the Great Jurassic East Asian Aridification

Arid

DOI	10.1130/G46641.1
	A true polar wander trigger for the Great Jurassic East Asian Aridification
	Yi, Zhiyu 1; Liu, Yongqing 1; Meert, Joseph G.2
通讯作者	Yi, Zhiyu
来源期刊	GEOLOGY
ISSN	0091-7613
EISSN	1943-2682
出版年	2019
卷号	47 期号:12 页码:1112-1116
英文摘要	A drastic environmental change occurred during the Middle to Late Jurassic as much of East Asia transitioned from a wet seasonal to an extremely arid climate. The timing, scope, and especially mechanism for this aridification are contentious. In this study, we report paleomagnetic data and ages from Jurassic volcanic rocks in North China and for the first time reveal a large-scale southward displacement of similar to 25 degrees for the Eastern Asian blocks (EABs) sometime between 174 +/- 6 Ma and 157 +/- 4 Ma. We suggest that the rapid motion documented by our paleomagnetic studies resulted from large-scale true polar wander (TPW). The TPW rotation displaced the EABs from the Northern Hemisphere humid-temperate belt into the subtropical/tropical arid zone. The resultant latitudinal motion coincided with a remarkable environmental change recorded over 10,000,000 km(2) in East Asia between ca. 165 Ma and 155 Ma. We call the climate transition the Great Jurassic East Asian Aridification and argue that TPW-induced climatic shifts were also responsible for the demise of the Yanliao Biota and subsequent radiation of the Jehol Biota during the Late Jurassic and Early Cretaceous.
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000504335600008
WOS关键词	NORTH CHINA IMPLICATIONS ; JEHOL-BIOTA ; AGE CONSTRAINTS ; INNER-MONGOLIA ; CLIMATE ; SHIFT ; MA ; EVOLUTION ; PROVINCE ; RECORD
WOS类目	Geology
WOS研究方向	Geology
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311142
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Minist Nat Resources, Key Lab Deep Earth Dynam, Beijing 100037, Peoples R China; 2.Univ Florida, Dept Geol Sci, 112 Williamson Hall, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Yi, Zhiyu,Liu, Yongqing,Meert, Joseph G.. A true polar wander trigger for the Great Jurassic East Asian Aridification[J],2019,47(12):1112-1116.
APA	Yi, Zhiyu,Liu, Yongqing,&Meert, Joseph G..(2019).A true polar wander trigger for the Great Jurassic East Asian Aridification.GEOLOGY,47(12),1112-1116.
MLA	Yi, Zhiyu,et al."A true polar wander trigger for the Great Jurassic East Asian Aridification".GEOLOGY 47.12(2019):1112-1116.