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DOI10.1029/2020JB020153
Crustal Clockwise Rotation of the Southeastern Edge of the Tibetan Plateau Since the Late Oligocene
Tong Y.; Yang Z.; Pei J.; Wang H.; Wu Z.; Li J.
发表日期2021
ISSN21699313
卷号126期号:1
英文摘要The ambiguous temporal relationship between the crustal clockwise rotation and the activity of block boundary strike-slip faults of the southeastern edge of the Tibetan Plateau has led to an incomplete understanding of the Cenozoic tectonic evolution of Southeast Asia. Based on the Pleistocene paleomagnetic data of the present work and previous Paleogene and Pliocene paleomagnetic data form the south side of the Eastern Himalayan Syntaxis (EHS), we confirmed that the southern edge of the EHS experienced strong clockwise rotation with an average rotational rate of 3.20-3.02°/Myr since the late Oligocene, indicating that the crustal clockwise rotation of the southeastern edge of the Tibetan Plateau was commenced no earlier than ∼25.7 ± 2.5 Ma. The block boundary strike-slip faults of the southeastern edge of the Tibetan Plateau began their major activity phase since ∼28 Ma, which was significantly synchronous with the northward indentation of the Indian Plate and the West Burma Block into the Eurasia to form the EHS, but was earlier than the initial clockwise rotation of the southeastern edge of the Tibetan Plateau. These temporal relationships probably indicate that the northward indentation of the Indian Plate and West Burma Block into the Eastern Himalayan orogenic belt to form the EHS since ∼28 Ma should be the paramount inducement to the crustal clockwise rotation and promote the major activity of block boundary strike-slip faults of the southeastern edge of the Tibetan Plateau. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词Cenozoic; crustal clockwise rotation; Eastern Himalayan Syntaxis; paleomagnetism; the southeastern edge of the Tibetan Plateau
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/187430
作者单位Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China; Key Laboratory of Paleomagnetism and Tectonic Reconstruction, The Ministry of Land and Resources, Beijing, China; College of Resources, Environment and Tourism, Capital Normal University, Beijing, China; Institute of Geology, China Earthquake Administration, Beijing, China
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Tong Y.,Yang Z.,Pei J.,et al. Crustal Clockwise Rotation of the Southeastern Edge of the Tibetan Plateau Since the Late Oligocene[J],2021,126(1).
APA Tong Y.,Yang Z.,Pei J.,Wang H.,Wu Z.,&Li J..(2021).Crustal Clockwise Rotation of the Southeastern Edge of the Tibetan Plateau Since the Late Oligocene.Journal of Geophysical Research: Solid Earth,126(1).
MLA Tong Y.,et al."Crustal Clockwise Rotation of the Southeastern Edge of the Tibetan Plateau Since the Late Oligocene".Journal of Geophysical Research: Solid Earth 126.1(2021).
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