Middle-Late Triassic southward-younging granitoids: Tectonic transition from subduction to collision in the Eastern Tianshan-Beishan Orogen, NW China
文献类型：期刊论文
| 作者 | Mao, Qigui1,6,7; Ao, Songjian1,2,5; Windley, Brian F.3; Zhang, Zhiyong2; Sang, Miao1,5,6; Tan, Zhou1,5,6; Wang, Hao1,5,6; Li, Rui1,5,6; Xiao, Wenjiao1,2,5,6; Pan, Zhuo4 |
| 刊名 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 134期号:9-10页码:2206-2224 |
| ISSN号 | 0016-7606 |
| DOI | 10.1130/B36172.1 |
| 英文摘要 | To constrain the closure mechanism and time of the Paleo-Asian Ocean, we report new geochronological and geochemical data for Triassic granites along a NW-SE corri-dor from Eastern Tianshan to Beishan, NW China. Seven granites have U-Pb ages that young southwards from 245 Ma to 234 Ma in the Kanguer accretionary complex, to 237 Ma to 234 Ma in the eastern Central Tianshan block, to 229 Ma to 223 Ma in the Liuyuan accretionary complex. Gran-ites in the Kanguer accretionary complex formed by fractional crystallization and are peraluminous, high-K, calc-alkaline, and crust-derived. They have very low MgO (Mg# = 6-9), Cr, and Ni contents, and their high epsilon Nd(t) (+3.40) and epsilon Hf(t) (+4.49 to +11.91) isotopes indicate that the Dananhu arc crust was juvenile. The Huaniushan pluton in the Liuyuan accretionary complex displays the geochemical signatures of both A1- and A2 -type granites (Y/Nb = 0.32-3.39). All other granites in the Central Tianshan block and Liuyuan accretionary complex are alumi-nous A2-types with high K2O + Na2O, Al, rare earth elements (REE), Zr + Nb + Y, Ga, Fe/Mg, and Y/Nb and remarkable depletions of Eu, Ba, Nb, Ta, Sr, P, and Ti. They have a broad range of MgO (Mg# = 9-59), Cr, and Ni contents, Isr (0.70741-0.70945) values, negative epsilon Nd (t) (-2.98 to -1.14), and low to moderate epsilon Hf(t) (-1.22 to +7.78), which sug-gests a mixture of mantle and crustal com-ponents. These 245-223 Ma granitoids show marked Nb-Ta depletions that point to a subduction origin. Notable enrichments in Nd-Hf isotopes of Late Triassic granites are likely an indication of collision. Integration with previous data enables us to conclude that the delamination of an oceanic slab and mantle upwelling induced partial melting of thickened arc crust during a tectonic transi-tion from a multiple supra-subduction mar-gin to a collisional setting in the Late Triassic. |
| WOS关键词 | A-TYPE GRANITES ; MAFIC-ULTRAMAFIC INTRUSIONS ; PHANEROZOIC CRUSTAL GROWTH ; ND ISOTOPIC EVIDENCE ; DONGGEBI MO DEPOSIT ; U-PB ; VOLCANIC-ROCKS ; CENTRAL-ASIA ; POSTCOLLISIONAL EXTENSION ; ACCRETIONARY COMPLEX |
| 资助项目 | National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41822204] ; National Key Research and Development Program of China[2017YFC0601201] ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research[201411026-1] ; "Light of West China" Program of the Chinese Academy of Sciences (CAS)[2017-XBQNXZ-B-013] ; "Light of West China" Program of the Chinese Academy of Sciences (CAS)[2018-XBYJRC-003] ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS)[131551KYSB20200021] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | GEOLOGICAL SOC AMER, INC |
| WOS记录号 | WOS:000862875200001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; "Light of West China" Program of the Chinese Academy of Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) ; Project of the China-Pakistan Joint Research Center on Earth Sciences (CAS) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/107817]  |
| 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 | Mao, Qigui |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Leicester, Sch Geog Geol & Environm, Leicester LE1 7RH, England 4.Nat Resources Affairs Ctr Hunan Prov, Changsha 410004, Peoples R China 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 7.Redrock Min CO Ltd, Hami 839000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Qigui,Ao, Songjian,Windley, Brian F.,et al. Middle-Late Triassic southward-younging granitoids: Tectonic transition from subduction to collision in the Eastern Tianshan-Beishan Orogen, NW China[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2022,134(9-10):2206-2224. |
| APA | Mao, Qigui.,Ao, Songjian.,Windley, Brian F..,Zhang, Zhiyong.,Sang, Miao.,...&Pan, Zhuo.(2022).Middle-Late Triassic southward-younging granitoids: Tectonic transition from subduction to collision in the Eastern Tianshan-Beishan Orogen, NW China.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,134(9-10),2206-2224. |
| MLA | Mao, Qigui,et al."Middle-Late Triassic southward-younging granitoids: Tectonic transition from subduction to collision in the Eastern Tianshan-Beishan Orogen, NW China".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 134.9-10(2022):2206-2224. |
入库方式： OAI收割
来源：地质与地球物理研究所
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