气候变化领域集成服务门户(CCPortal): Eocene Rotation of the Northeastern Central Tibetan Plateau Indicating Stepwise Compressions and Eastward Extrusions

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DOI	10.1029/2020GL088989
	Eocene Rotation of the Northeastern Central Tibetan Plateau Indicating Stepwise Compressions and Eastward Extrusions
	Zhang, Weilin; Fang, Xiaomin; Zhang, Tao; Song, Chunhui; Yan, Maodu
通讯作者	Zhang, WL (通讯作者)
发表日期	2020
ISSN	0094-8276
EISSN	1944-8007
卷号	47 期号:17
英文摘要	When and how the TP underwent uplift and deformation are still under heated debate. We present paleomagnetic evidence for the NB in the northeastern central TP to help decipher the potential plateau deformation mechanism. Magnetostratigraphy with zircon U-Pb age of volcanic rock demonstrates that the NB basin deposited during 52.5-35.0 Ma. Paleomagnetic declinations indicate that the basin experienced counterclockwise rotation of 25.9 +/- 7.2 degrees during 52-46 Ma and clockwise rotation of 24.4 +/- 9.7 degrees during 41-35 Ma, which coexisted with the intrusion and explosion of volcanic rocks at 51-46 and 39-35 Ma. We proposed a stepwise compression and extrusion model to interpret the basin deposition, rotation, and volcanism by northward compression and eastward extrusion of the eastern Lhasa and Qiangtang Blocks (Proto-TP) in relation to the Sichuan Basin as early response to the India-Asia collision.
关键词	ALTYN-TAGH FAULT HOH XIL BASIN RIVER SHEAR ZONE SOUTHERN TIBET EASTERN TIBET CONTINENTAL-COLLISION MANTLE SUBDUCTION TECTONIC HISTORY VOLCANIC-ROCKS NORTH TIBET
英文关键词	Magnetostratigraphy; Paleomagnetic rotation; Nangqian Basin; northeastern central Tibetan Plateau; compression and extrusion
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000572406100049
来源期刊	GEOPHYSICAL RESEARCH LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259712
推荐引用方式 GB/T 7714	Zhang, Weilin,Fang, Xiaomin,Zhang, Tao,et al. Eocene Rotation of the Northeastern Central Tibetan Plateau Indicating Stepwise Compressions and Eastward Extrusions[J]. 中国科学院青藏高原研究所,2020,47(17).
APA	Zhang, Weilin,Fang, Xiaomin,Zhang, Tao,Song, Chunhui,&Yan, Maodu.(2020).Eocene Rotation of the Northeastern Central Tibetan Plateau Indicating Stepwise Compressions and Eastward Extrusions.GEOPHYSICAL RESEARCH LETTERS,47(17).
MLA	Zhang, Weilin,et al."Eocene Rotation of the Northeastern Central Tibetan Plateau Indicating Stepwise Compressions and Eastward Extrusions".GEOPHYSICAL RESEARCH LETTERS 47.17(2020).