气候变化领域集成服务门户(CCPortal): Paleomagnetic Constraints on the India–Asia Collision and the Size of Greater India

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DOI	10.1029/2021JB021965
	Paleomagnetic Constraints on the India–Asia Collision and the Size of Greater India
	Bian W.; Yang T.; Peng W.; Wang S.; Gao F.; Zhang S.; Wu H.; Li H.; Cao L.; Jiang T.; Wang H.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	The timing and location India–Asia collision is crucial to understanding the evolution of the Himalayan–Tibetan orogen and global climate change; however, estimates of the timing of the India–Asia collision and the size of Greater India remain highly controversial. We report here the first reliable early Eocene paleomagnetic results from the Zhepure Formation limestone in the Tethyan Himalaya (TH). Both positive fold and reversal tests indicate a primary origin. The tilt-corrected site-mean direction is Ds = 332.6°, Is = 20.1°, ks = 90.9, α95 = 2.8° (N = 30). The site-mean inclination increased from 20.1° to 27.5° after inclination shallowing correction, yielding a paleopole at 61.2°N, 337.3°E, A95 = 2.6° and a corresponding paleolatitude of 15.2° ± 2.6°N for the reference point (29.5°N, 91.0°E). Our new paleomagnetic results, together with the reliable Cretaceous to Paleogene paleomagnetic results from the TH, Lhasa terrane and Indian craton, suggest that there was ∼900–1,140 km north-south crustal shortening occurred between the TH and the Indian craton, and that India collided with Asia at no later than ∼51–49.5 Ma. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Eocene; Greater India; India-Asia collision; Paleomagnetism; Tethyan Himalaya
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187083
作者单位	State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, China; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; School of Ocean Sciences, China University of Geosciences, Beijing, China; Planetary Science Institute, China University of Geosciences, Wuhan, China
推荐引用方式 GB/T 7714	Bian W.,Yang T.,Peng W.,等. Paleomagnetic Constraints on the India–Asia Collision and the Size of Greater India[J],2021,126(6).
APA	Bian W..,Yang T..,Peng W..,Wang S..,Gao F..,...&Wang H..(2021).Paleomagnetic Constraints on the India–Asia Collision and the Size of Greater India.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Bian W.,et al."Paleomagnetic Constraints on the India–Asia Collision and the Size of Greater India".Journal of Geophysical Research: Solid Earth 126.6(2021).