气候变化领域集成服务门户(CCPortal): Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system

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DOI	10.1130/L494.1
	Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system
	Wu, Chen; Yin, An; Zuza, Andrew V.; Zhang, Jinyu; Liu, Wencan; Ding, Lin
通讯作者	Yin, A (通讯作者)
发表日期	2016
ISSN	1941-8264
EISSN	1947-4253
起始页码	254
结束页码	292
卷号	8 期号:3
英文摘要	In order to better constrain the evolution of the Tethyan orogenic system, we conducted an integrated investigation involving U-Pb dating of igneous and detrital zircon, geochemical analysis of igneous rocks, compositional analysis of sedimentary strata, and a synthesis of existing work across the Qilian Shan, Qaidam Basin, and the Eastern Kunlun Range of central and northern Tibet. This effort reveals five stages of arc magmatism at 1005-910 Ma, 790-720 Ma, 580-500 Ma, 490-375 Ma, and 290-195 Ma, respectively. Arc activities were interrupted by repeated continent-continent collision followed by ocean opening along the older suture zones first created in the Neoproterozoic. This suggests that Wilson cycles have played a controlling role in constructing the southern Asian continent. The magmatic history and regional geologic constraints allow us to construct a coherent tectonic model that has the following key features. (1) The linked South Qilian suture in the west and North Qinling suture in the east formed the northern boundary of the coherent Kunlun-Qaidam-North Qinling Terrane in the early Paleozoic. (2) The Songpan-Ganzi Terrane has been the western part of the Yangtze craton since the Neoproterozoic. (3) Development of the wide (>700 km) Permian-Triassic arc across the Kunlun-Qaidam Terrane was induced by flat subduction and rapid slab rollback, which also caused extreme extension of the Songpan-Ganzi Terrane. (4) The formation of the Anymaqen-Kunlun-Muztagh Ocean (=the Neo-Kunlun Ocean in this study) was created within Laurasia rather than being a preexisting ocean between Gondwana and Laurasia as postulated by most early studies.
关键词	U-PB GEOCHRONOLOGY EASTERN KUNLUN MOUNTAINS SONGPAN-GANZI COMPLEX DETRITAL-ZIRCON GEOCHRONOLOGY HF ISOTOPIC COMPOSITIONS SILURIAN CLASTIC ROCKS FISSION-TRACK EVIDENCE HIGH-PRESSURE ROCKS A-TYPE GRANITOIDS SHAN THRUST BELT
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Geology
WOS类目	Geochemistry & Geophysics ; Geology
WOS记录号	WOS:000378111700004
来源期刊	LITHOSPHERE
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/258805
推荐引用方式 GB/T 7714	Wu, Chen,Yin, An,Zuza, Andrew V.,et al. Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system[J]. 中国科学院青藏高原研究所,2016,8(3).
APA	Wu, Chen,Yin, An,Zuza, Andrew V.,Zhang, Jinyu,Liu, Wencan,&Ding, Lin.(2016).Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system.LITHOSPHERE,8(3).
MLA	Wu, Chen,et al."Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system".LITHOSPHERE 8.3(2016).