Provenance of Mesozoic clastic rocks within the Bangong-Nujiang suture zone, central Tibet: Implications for the age of the initial Lhasa-Qiangtang collision

doi:10.1016/j.jseaes.2017.08.019

	Provenance of Mesozoic clastic rocks within the Bangong-Nujiang suture zone, central Tibet: Implications for the age of the initial Lhasa-Qiangtang collision
	Li, S (Li, Shun)1,2,3; Guilmette, C (Guilmette, Carl)3; Ding, L (Ding, Lin)4; Xu, Q (Xu, Qiang)4; Fu, JJ (Fu, Jia-Jun)5,6; Yue, YH (Yue, Ya-Hui)4; Li, S
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2017
卷号	147 期号:0 页码:469-484
关键词	U-pb Geochronology India-asia Collision Detrital Zircon Geochronology Foreland Basin Evolution Hf Isotopic Compositions Triassic Arc Magmatism Southern Tibet Neo-tethys Tectonic Implications Cretaceous Strata
DOI	10.1016/j.jseaes.2017.08.019
文献子类	Article
英文摘要	The Bangong-Nujiang suture zone, separating the Lhasa and Qiangtang blocks of the Tibetan Plateau, is marked by remnants of the Bangong-Nujiang oceanic basin. In the Gaize area of central Tibet, Mesozoic sedimentary strata recording the evolution of the basin and subsequent collision between these two blocks include the Upper Triassic-Lower Jurassic turbidites of the Mugagangri Group, the Upper Jurassic-Lower Cretaceous sandstone dominated Wuga and Shamuluo formations, and the Upper Cretaceous molasse deposits of the Jingzhushan Formation. The Shamuluo and Jingzhushan formations rest unconformably on the underlying Mugagangri Group and Wuga Formation, respectively. In this contribution, we analyze petrographic components of sandstones and U-Pb-Hf isotopic compositions of detrital zircons from the Wuga and Jingzhushan formations for the first time. Based on the youngest detrital zircon ages, the maximum depositional ages of the Wuga and Jingzhushan formations are suggested to be similar to 147-150 Ma and similar to 79-91 Ma, respectively. Petrographic and isotopic results indicate that sediments in the Wuga Formation were mainly sourced from the accretionary complex (preserved as the Mugagangri Group) in the north, while sediments in the Jingzhushan Formation have mixed sources from the Lhasa block, the Qiangtang block and the intervening suture zone. Provenance analysis, together with regional data, suggests that the Upper Jurassic-Lower Cretaceous Wuga and Shamuluo formations were deposited in a peripheral foreland basin and a residual-sea basin, respectively, in response to the Lhasa-Qiangtang collision, whereas the Upper Cretaceous Jingzhushan Formation reflects continental molasse deposition during the post-collisional stage. The development of the peripheral foreland basin evidenced by deposition of the Wuga Formation reveals that the age of the initial Lhasa-Qiangtang collision might be the latest Jurassic (similar to 150 Ma).
学科主题	地质学
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000413125600034
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/7978]
专题	青藏高原研究所_图书馆
通讯作者	Li, S
作者单位	1.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China. 2.Guangdong Prov Key Lab Mineral Resources & Geol P, Guangzhou 510275, Guangdong, Peoples R China. 3.Univ Laval, Dept Geol & Genie Geol, 1065 Ave Med, Quebec City, PQ G1V0A6, Canada. 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China. 5.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. 6.Fujian Inst Geol Survey, Fuzhou 350013, Fujian, Peoples R China.
推荐引用方式 GB/T 7714	Li, S ,Guilmette, C ,Ding, L ,et al. Provenance of Mesozoic clastic rocks within the Bangong-Nujiang suture zone, central Tibet: Implications for the age of the initial Lhasa-Qiangtang collision[J]. JOURNAL OF ASIAN EARTH SCIENCES,2017,147(0):469-484.
APA	Li, S .,Guilmette, C .,Ding, L .,Xu, Q .,Fu, JJ .,...&Li, S.(2017).Provenance of Mesozoic clastic rocks within the Bangong-Nujiang suture zone, central Tibet: Implications for the age of the initial Lhasa-Qiangtang collision.JOURNAL OF ASIAN EARTH SCIENCES,147(0),469-484.
MLA	Li, S ,et al."Provenance of Mesozoic clastic rocks within the Bangong-Nujiang suture zone, central Tibet: Implications for the age of the initial Lhasa-Qiangtang collision".JOURNAL OF ASIAN EARTH SCIENCES 147.0(2017):469-484.