| 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 | |
| Source Publication | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 2017 | |
| Volume | 147Issue:0Pages:469-484 |
| DOI | 10.1016/j.jseaes.2017.08.019 |
| Abstract | 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). |
| Subject Area | 地质学 |
| WOS ID | WOS:000413125600034 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | 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 |
| WOS Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary ; Geology |
| Cooperation Status | 国际 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7978 |
| Collection | 图书馆 |
| Corresponding Author | Li, S |
| Affiliation | 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. |
| Recommended Citation 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. |
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| File Name/Size | DocType | Version | Access | License | ||
| V.147 469-484 2017.p（3301KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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