A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids
文献类型：期刊论文
| 作者 | Bai, Xueyin3,4; Chen, Yichao3; Song, Dongfang3,4; Xiao, Wenjiao2,3; Windley, Brian F.1; Ao, Songjian3,4; Li, Liang2,3; Xiang, Dunfeng3,4 |
| 刊名 | GEOLOGICAL JOURNAL
 |
| 出版日期 | 2020-02-17 |
| 页码 | 22 |
| 关键词 | Altaids Carboniferous-Permian intra-oceanic arc North Tianshan volcanic rocks |
| ISSN号 | 0072-1050 |
| DOI | 10.1002/gj.3787 |
| 英文摘要 | The North Tianshan in NW China is a key to understanding the accretionary history of the southern Altaids. However, the tectonic setting of the North Tianshan in the Carboniferous-Permian is debatable, and its amalgamation history is ambiguous. We report new data on the field relations, geochronology and geochemistry of Carboniferous-Jurassic volcanic rocks and sedimentary rocks from the Shichang area in order to constrain the late Palaeozoic-Early Mesozoic tectonic evolution of the North Tianshan. New LA-ICP-MS zircon U-Pb dates demonstrate that the Carboniferous-Permian stratigraphy is a tectonic imbrication of Carboniferous-Permian rocks and Carboniferous volcanic rocks were emplaced in Permian volcano-sedimentary rocks. The 311 +/- 2 Ma volcanic rocks are calc-alkaline, enriched in Light Rare Earth Elements and large-ion lithophile elements, depleted in high-field-strength elements, and have low initial Sr-87/Sr-86 ratios with positive epsilon(Nd)(t)(+0.3 to +8.6)values. The geochemical-isotopic data suggest the volcanic rocks were generated in an intra-oceanic island arc. The turbidite samples 18SC02 (similar to 267 Ma to similar to 349 Ma) and 18SC09 (similar to 299 Ma to similar to 369 Ma) have a relatively narrow age range with no Devonian or Precambrian peaks. Our detrital zircon data suggest the presence of a so far unrecognized intra-oceanic arc, which was isolated from the main Yili-Central Tianshan and Mosuowan arcs in the Shichang area of the North Tianshan during the Late Carboniferous to Permian. The compiled detrital zircon data from Carboniferous to Jurassic indicates that the North Tianshan intra-oceanic arc was probably amalgamated with the Mosuowan arc by the Early Triassic, and then accreted to the Yili-Central Tianshan arc by the Middle-Late Triassic, as revealed by the changes of zircon provenance of Carboniferous, Permian, Triassic and Jurassic sedimentary rocks. All integrated data suggest that the southern Altaids most likely formed by processes of multiple subduction-accretion and convergence similar to that in the ongoing southwest Pacific. |
| WOS关键词 | ZIRCON U-PB ; VOLCANIC-ROCKS ; WESTERN TIANSHAN ; CENTRAL-ASIA ; CONTINENTAL GROWTH ; JUNGGAR BASIN ; YILI BLOCK ; SHRIMP CHRONOLOGY ; CRUSTAL GROWTH ; PALEOZOIC ACCRETION |
| 资助项目 | Key Research Program of Frontier Sciences, CAS[QYZDJ-SSWSYS012] ; National Key R&D Program of China[2017YFC0601206] ; National Natural Science Foundation of China[41888101 41230207] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18020203] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000513843800001 |
| 出版者 | WILEY |
| 资助机构 | Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95639]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Xiao, Wenjiao |
| 作者单位 | 1.Univ Leicester, Dept Geol, Leicester, Leics, England 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Xueyin,Chen, Yichao,Song, Dongfang,et al. A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids[J]. GEOLOGICAL JOURNAL,2020:22. |
| APA | Bai, Xueyin.,Chen, Yichao.,Song, Dongfang.,Xiao, Wenjiao.,Windley, Brian F..,...&Xiang, Dunfeng.(2020).A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids.GEOLOGICAL JOURNAL,22. |
| MLA | Bai, Xueyin,et al."A new Carboniferous-Permian intra-oceanic subduction system in the North Tianshan (NW China): Implications for multiple accretionary tectonics of the southern Altaids".GEOLOGICAL JOURNAL (2020):22. |
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来源：地质与地球物理研究所
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