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Subject: 地球科学::地质学
Title: Pre-Cenozoic geologic history of the central and northern Tibetan Plateau and the role of Wilson cycles in constructing the Tethyan orogenic system
Author: Wu, C (Wu, Chen)1; Yin, A (Yin, An)1, 2; Zuza, AV (Zuza, Andrew V.)2; Zhang, JY (Zhang, Jinyu)3; Liu, WC (Liu, Wencan)1; Ding, L (Ding, Lin)4
Corresponding Author: Yin, A
Source: LITHOSPHERE
Issued Date: 2016
DOI: 10.1130/L494.1
Volume: 8, Issue:3, Pages:254-292
Indexed Type: SCI
Cooperation Status: 国际
DOC Type: Article
English Abstract: 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.
Language: 英语
WOS ID: WOS:000378111700004
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Content Type: 期刊论文
URI: http://ir.itpcas.ac.cn/handle/131C11/7686
Appears in Collections:图书馆_期刊论文

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description.institution: 1.China Univ Geosci, Struct Geol Grp, Beijing 100083, Peoples R China
2.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA
3.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, POB 9825, Beijing 100085, Peoples R China

Recommended Citation:
Wu, C ,Yin, A ,Zuza, AV ,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]. LITHOSPHERE,2016,8(3):254-292.
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文件名: V.8(3) 254-295 2016.pdf
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