Jurassic sedimentation in the south-central Qiangtang terrane reveals successive terrane collisions in central Tibet

doi:10.1130/GES01649.1

IEECAS OpenIR > 粉尘与环境研究室

	Jurassic sedimentation in the south-central Qiangtang terrane reveals successive terrane collisions in central Tibet
	Li, Lin 1; Garzione, Carmala N.2; Fan, Majie 1; Li, Xiaowei 3; Li, Xiangzhong 4
通讯作者	Li, Lin(li.lin8611@gmail.com)
	2019-04-01
发表期刊	GEOSPHERE
ISSN	1553-040X
卷号	15 期号:2 页码:433-449
摘要	Our limited knowledge of Mesozoic tectonism in the Tibetan Plateau has hindered understanding of its geologic evolution. This study uses zircon U-Pb geochronology to refine regional chronostratigraphy and infer the Jurassic sedimentary-tectonic evolution of the Bangong suture and the south-central Qiangtang terrane in the central plateau. During the late Early-early Middle Jurassic, fan delta and alluvial fan deposits sourced from the Amdo basement to the south occurred within the Amdo suture zone, as a result of collision between the Amdo basement and Qiangtang terrane. Since the Bajocian of the Middle Jurassic, continued sea-level rise transformed the Qiangtang terrane into a south-facing shallow continental shelf, and sedimentary detritus was predominantly sourced from the Hoh Xil and Kunlun terranes to the north. The contemporaneous magmatic arc in southern Qiangtang terrane was most likely submerged in a marine setting and did not contribute much detritus to the Middle Jurassic strata. Starting from the early Late Jurassic, a depositional hiatus occurred in the southern Qiangtang terrane, whereas the shallow marine to deltaic deposition in the central Qiangtang terrane received detritus not only from the Hoh Xil and Kunlun terranes to the north, but also from the magmatic arc in southern Qiangtang terrane to the south. The arrival of abundant Jurassic arc-derived detritus in central Qiangtang terrane since ca. 163 Ma was most likely caused by the early Late Jurassic initial collision between the Lhasa and Qiangtang terranes, which raised the southern Qiangtang magmatic arc to be a source region.
DOI	10.1130/GES01649.1
关键词[WOS]	U-PB GEOCHRONOLOGY ; TECTONIC EVOLUTION ; NORTHERN TIBET ; ZIRCON GEOCHRONOLOGY ; VOLCANIC-ROCKS ; BASEMENT ROCKS ; WESTERN TIBET ; LHASA TERRANE ; AMDO TERRANE ; CONSTRAINTS
收录类别	SCI ; SCI
语种	英语
资助项目	U.S. National Science Foundation[EAR-1211527] ; U.S. National Science Foundation[EAR-1348005] ; National Science Foundation of China[40921120406]
WOS研究方向	Geology
项目资助者	U.S. National Science Foundation ; National Science Foundation of China
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000462476700008
出版者	GEOLOGICAL SOC AMER, INC
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14198
专题	粉尘与环境研究室
通讯作者	Li, Lin
作者单位	1.Univ Texas Arlington, Dept Earth & Environm Sci, Arlington, TX 76019 USA 2.Univ Rochester, Dept Earth & Environm Sci, Rochester, NY 14627 USA 3.China Univ Geosci, Sch Earth Sci & Resources, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Lin,Garzione, Carmala N.,Fan, Majie,et al. Jurassic sedimentation in the south-central Qiangtang terrane reveals successive terrane collisions in central Tibet[J]. GEOSPHERE,2019,15(2):433-449.
APA	Li, Lin,Garzione, Carmala N.,Fan, Majie,Li, Xiaowei,&Li, Xiangzhong.(2019).Jurassic sedimentation in the south-central Qiangtang terrane reveals successive terrane collisions in central Tibet.GEOSPHERE,15(2),433-449.
MLA	Li, Lin,et al."Jurassic sedimentation in the south-central Qiangtang terrane reveals successive terrane collisions in central Tibet".GEOSPHERE 15.2(2019):433-449.