气候变化领域集成服务门户(CCPortal): Carbonate U-Pb Ages Constrain Paleocene Motion Along the Altyn Tagh Fault in Response to the India-Asia Collision

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DOI	10.1029/2023GL107716
	Carbonate U-Pb Ages Constrain Paleocene Motion Along the Altyn Tagh Fault in Response to the India-Asia Collision
	Yi, Kexin; Cheng, Feng; Jolivet, Marc; Li, Jiaming; Guo, Zhaojie
发表日期	2024
ISSN	0094-8276
EISSN	1944-8007
起始页码	51
结束页码	8
卷号	51 期号:8
英文摘要	The kinematics and deformation pattern along the Altyn Tagh fault (ATF), one of the largest strike-slip faults on Earth is of great significance for understanding the growth of the Tibetan Plateau. However, the initial rupture along the ATF remains debated given the limited constraints on the depositional age of associated Cenozoic syntectonic strata. Here we investigated the syntectonic Cenozoic strata in the Xorkol Basin, associated with the strike-slip faulting along the ATF. New uranium-lead analyses of the carbonate deposits in the Paleogene strata yield dates of 58.9 +/- 1.29 Ma, representing the initial rupture of the ATF. This first documented radioisotopic age coincides with the ca. 60 Ma onset timing of India-Asia collision, highlighting its far-field effect at the northern edge of the Tibetan Plateau. We infer that the deformation of the entire Tibetan Plateau started synchronously with the India-Asia collision. Carbonate U-Pb dating techniques applied to rocks associated with the Altyn Tagh fault, a major fault in North Tibet, reveal that the fault started slipping about 58.9 million years ago, coinciding with the time when India collided with Asia. This finding provides new constraints on when and where this fault formed and suggests that the northern Tibetan Plateau started deformation earlier than previously thought. This result emphasizes that the entire Tibetan Plateau deformed simultaneously in the early Cenozoic. Calcite U-Pb dating yields ca. 59 Ma age for carbonate strata in the East Xorkol Basin Xorkol Basin was a pull-apart basin during the Paleocene due to the left-lateral strike-slip faulting along the Altyn Tagh fault Widespread Paleocene-Eocene tectonism in Northern Tibet highlights the far-field effect of the India-Asia collision
英文关键词	Tibetan Plateau; Altyn Tagh fault; carbonate U-Pb dating; Paleocene; syntectonic sediments; far-field effect
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001203494300001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290055
作者单位	Peking University; Universite de Rennes; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU)
推荐引用方式 GB/T 7714	Yi, Kexin,Cheng, Feng,Jolivet, Marc,et al. Carbonate U-Pb Ages Constrain Paleocene Motion Along the Altyn Tagh Fault in Response to the India-Asia Collision[J],2024,51(8).
APA	Yi, Kexin,Cheng, Feng,Jolivet, Marc,Li, Jiaming,&Guo, Zhaojie.(2024).Carbonate U-Pb Ages Constrain Paleocene Motion Along the Altyn Tagh Fault in Response to the India-Asia Collision.GEOPHYSICAL RESEARCH LETTERS,51(8).
MLA	Yi, Kexin,et al."Carbonate U-Pb Ages Constrain Paleocene Motion Along the Altyn Tagh Fault in Response to the India-Asia Collision".GEOPHYSICAL RESEARCH LETTERS 51.8(2024).