Early Cenozoic Tectonics of the Tibetan Plateau

doi:10.1111/1755-6724.12051

	Early Cenozoic Tectonics of the Tibetan Plateau
	Wu Zhenhan 3; Hu Daogong 1; Ye Peisheng 1; Wu Zhonghai 1
刊名	ACTA GEOLOGICA SINICA-ENGLISH EDITION
	2013
卷号	87 期号:2 页码:289-303
关键词	paleo-tectonics paleo-elevation subduction of the oceanic plate Paleocene-Eocene the Tibetan Plateau
ISSN号	1000-9515;EI 1755-6724
DOI	10.1111/1755-6724.12051
英文摘要	Geological mapping at a scale of 1:250000 coupled with related researches in recent years reveal well Early Cenozoic paleo-tectonic evolution of the Tibetan Plateau. Marine deposits and foraminifera assemblages indicate that the Tethys-Himalaya Ocean and the Southwest Tarim Sea existed in the south and north of the Tibetan Plateau, respectively, in Paleocene-Eocene. The paleo-oceanic plate between the Indian continental plate and the Lhasa block had been as wide as 900km at beginning of the Cenozoic Era. Late Paleocene transgressions of the paleo-sea led to the formation of paleo-bays in the southern Lhasa block. Northward subduction of the Tethys-Himalaya Oceanic Plate caused magma emplacement and volcanic eruptions of the Linzizong Group in 64.544.3 Ma, which formed the Paleocene-Eocene Gangdise Magmatic Arc in the north of Yalung-Zangbu Suture (YZS), accompanied by intensive thrust in the Lhasa, Qiangtang, Hoh Xil and Kunlun blocks. The Paleocene-Eocene depression of basins reached to a depth of 35004800 m along major thrust faults and 680850 m along the boundary normal faults in central Tibetan Plateau, and the Paleocene-Eocene depression of the Tarim and Qaidam basins without evident contractions were only as deep as 300580 m and 600830 m, respectively, far away from central Tibetan Plateau. Low elevation plains formed in the southern continental margin of the Tethy-Himalaya Ocean, the central Tibet and the Tarim basin in Paleocene-Early Eocene. The Tibetan Plateau and Himalaya Mts. mainly uplifted after the Indian-Eurasian continental collision in Early-Middle Eocene.
学科主题	构造地质学
WOS关键词	CONTINENTAL SUBDUCTION ; NORTHERN TIBET ; SOUTHERN TIBET ; EVOLUTION ; BASIN ; HISTORY ; GEOCHRONOLOGY ; CONSTRAINTS ; SYSTEM ; UPLIFT
WOS研究方向	Geology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000318232600001
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40233]
专题	中国地质科学院
作者单位	1.Chinese Acad Geol Sci, Beijing 100037, Peoples R China. 2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China. 3.中国地质科学院（院部）
推荐引用方式 GB/T 7714	Wu Zhenhan,Hu Daogong,Ye Peisheng,et al. Early Cenozoic Tectonics of the Tibetan Plateau[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2013,87(2):289-303.
APA	Wu Zhenhan,Hu Daogong,Ye Peisheng,&Wu Zhonghai.(2013).Early Cenozoic Tectonics of the Tibetan Plateau.ACTA GEOLOGICA SINICA-ENGLISH EDITION,87(2),289-303.
MLA	Wu Zhenhan,et al."Early Cenozoic Tectonics of the Tibetan Plateau".ACTA GEOLOGICA SINICA-ENGLISH EDITION 87.2(2013):289-303.