New insights into the timing of the India-Asia collision from the Paleogene Quxia and Jialazi formations of the Xigaze forearc basin, South Tibet
文献类型：期刊论文
| 作者 | Hu, Xiumian1; Wang, Jiangang1,2; BouDagher-Fadel, Marcelle3; Garzanti, Eduardo4; An, Wei1 |
| 刊名 | GONDWANA RESEARCH
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 32页码:76-92 |
| 关键词 | India-Asia collision Xigaze forearc basin Southern Tibet Paleogene Himalayan orogen |
| DOI | 10.1016/j.gr.2015.02.007 |
| 文献子类 | Article |
| 英文摘要 | The Xigaze forearc basin provides information on subduction evolution and magmatic growth of the Gangdese arc as well as on the India-Asia continental collision. Recently obtained sedimentological, biostratigraphic, petrographic, geochemical and geochronological data on Cretaceous to Paleogene strata in the Cuojiangding area (Zhongba county, south Tibet) shed new light on the tectonic evolution of the southern margin of the Lhasa Block during closure of Neotethys and initial collision with India. The uppermost Cretaceous Padana and Qubeiya formations, deposited in deltaic to inner shelf environments, and representing the final filling of the Xigaze forearc basin, were unconformably overlain by the Quxia and Jialazi formations, deposited in fan-delta environments during the Paleocene/earliest Eocene. Petrographic data and U-Pb ages of detrital zircons document the progressive unroofing of the Gangdese arc, which remained the dominant source of detritus throughout the Late Cretaceous to Paleogene. Detrital Cr-spinets in the Quxia and Jialazi formations are geochemically similar to those in Cretaceous Xigaze forearc strata but different from those hosted in Yarlung Zangbo ophiolites, suggesting that the latter were not exposed to erosion in the considered time window. Sandstone petrography, Cr-spinel-geochemistry, U-Pb age spectra and Hf isotopic ratios of detrital zircons in the Quxia and Jialazi formations match those in Paleogene sediments deposited on the distal (Sangdanlin and Zheya formations) and proximal Indian margin (Enba and Zhaguo formations), suggesting that the Quxia and Jialazi formations documents syncollisional fan-deltas deposited on top of the nascent Himalayan orogenic belt. In this scenario, the onset of the India-Asia collision predates deposition of the Quxia and Jialazi formations and is thus constrained as younger than 66 Ma and older than 58 Ma. (C) 2015 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | ZIRCON U-PB ; TSANGPO SUTURE ZONE ; HF ISOTOPIC CONSTRAINTS ; TECTONIC EVOLUTION ; LHASA BLOCK ; CONTINENTAL COLLISION ; FACIES ARCHITECTURE ; LADAKH HIMALAYA ; PASSIVE MARGIN ; PROVENANCE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000374425100006 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03010106) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03010106) ; MOST 973 Project(2012CB822001) ; MOST 973 Project(2012CB822001) ; NSFC Project(41172092) ; NSFC Project(41172092) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03010106) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03010106) ; MOST 973 Project(2012CB822001) ; MOST 973 Project(2012CB822001) ; NSFC Project(41172092) ; NSFC Project(41172092) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53496]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 作者单位 | 1.Nanjing Uniyers, State Key Lab Mineral Deposit Res, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.UCL, Dept Geol Sci, Mortimer St, London WC1E 6BT, England 4.Univ Milano Bicocca, Dept Earth & Environm Sci, I-20126 Milan, Italy |
| 推荐引用方式 GB/T 7714 | Hu, Xiumian,Wang, Jiangang,BouDagher-Fadel, Marcelle,et al. New insights into the timing of the India-Asia collision from the Paleogene Quxia and Jialazi formations of the Xigaze forearc basin, South Tibet[J]. GONDWANA RESEARCH,2016,32:76-92. |
| APA | Hu, Xiumian,Wang, Jiangang,BouDagher-Fadel, Marcelle,Garzanti, Eduardo,&An, Wei.(2016).New insights into the timing of the India-Asia collision from the Paleogene Quxia and Jialazi formations of the Xigaze forearc basin, South Tibet.GONDWANA RESEARCH,32,76-92. |
| MLA | Hu, Xiumian,et al."New insights into the timing of the India-Asia collision from the Paleogene Quxia and Jialazi formations of the Xigaze forearc basin, South Tibet".GONDWANA RESEARCH 32(2016):76-92. |
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来源：地质与地球物理研究所
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