Early Permian subduction-related transtension in the Turpan Basin, East Tianshan (NW China): implications for accretionary tectonics of the southern Altaids
文献类型：期刊论文
| 作者 | Mao, Qigui3,4; Xiao, Wenjiao5,6; Windley, Brian F.7; Yu, Minjie3; Sun, Min1; Ao, Songjian2,6; Zhang, Ji'en2,6 |
| 刊名 | GEOLOGICAL MAGAZINE
 |
| 出版日期 | 2021 |
| 卷号 | 158期号:1页码:175-198 |
| 关键词 | volcanic rocks early Permian A-type granite transtension East Tianshan |
| ISSN号 | 0016-7568 |
| DOI | 10.1017/S0016756819001006 |
| 英文摘要 | The interaction of the Palaeo-Pacific and Palaeo-Asian Oceans is an enigmatic issue as their temporal and spatial features are controversial. To address this issue, we present a systematic study of large volumes of early Permian volcanic rocks and intrusions developed in the East Tianshan. The represented samples of basaltic andesites and rhyolites yield zircon crystallization ages of 285.1 +/- 5.9 Ma and 275.3 +/- 1.8 Ma, respectively. The basalts have normal mid-ocean ridge basalt (N-MORB) and arc-related geochemical signatures with high TiO2 contents, negative Rb, Th, U, Nb and Ta anomalies and positive Eu anomalies. Basaltic andesites and andesites have arc-related geochemical characteristics with moderate TiO2 contents and relatively negative Nb, Ta and Ti anomalies, together with slightly negative to positive Eu anomalies. The rhyolites show an affinity with A(2)-type granite with high SiO2, K2O + Na2O, Fe/Mg, Ga, Zr, Nb, Y, HFSE, REE and Y/Nb levels (>1.2). These geochemical data suggest that the rocks formed in a supra-subduction zone. The presence of high epsilon(Nd)(t) values of +4.6 to +8.2 and low (Sr-87/Sr-86)( i ) (0.70342-0.70591) values indicates that the volcanic rocks originated from a depleted mantle. We propose that oblique subduction with slabs breaking off gave rise to transtension and to the emplacement of large volumes of mantle-derived melts in the early Permian in the East Tianshan, serving as an important record of the subduction zone of the Palaeo-Pacific Ocean. |
| WOS关键词 | ASIAN OROGENIC BELT ; A-TYPE GRANITES ; MAFIC-ULTRAMAFIC INTRUSIONS ; U-PB AGE ; PHANEROZOIC CRUSTAL GROWTH ; VOLCANIC-ROCKS ; GEOCHEMICAL CHARACTERISTICS ; CONTINENTAL GROWTH ; ISOTOPIC EVIDENCE ; NORTHWEST CHINA |
| 资助项目 | National Key Research and Development Program of China[2017YFC0601201] ; National Natural Science Foundation of China[41888101] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18020203] ; Chinese Geological Survey Project[DD20190815] ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research[201411026-1] ; Chinese State 305 Project[2011BAB06B04-03] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-SYS012] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000604984400012 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | National Key Research and Development Program of China ; National Key Research and Development Program 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 ; Chinese Geological Survey Project ; Chinese Geological Survey Project ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese State 305 Project ; Chinese State 305 Project ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key Research and Development Program of China ; National Key Research and Development Program 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 ; Chinese Geological Survey Project ; Chinese Geological Survey Project ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese State 305 Project ; Chinese State 305 Project ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key Research and Development Program of China ; National Key Research and Development Program 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 ; Chinese Geological Survey Project ; Chinese Geological Survey Project ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese State 305 Project ; Chinese State 305 Project ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Key Research and Development Program of China ; National Key Research and Development Program 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 ; Chinese Geological Survey Project ; Chinese Geological Survey Project ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese Ministry of Land and Resources for the Public Welfare Industry Research ; Chinese State 305 Project ; Chinese State 305 Project ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/99966]  |
| 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 Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Beijing Inst Geol Mineral Resources, Beijing 100012, Peoples R China 4.Deep Explorat Tech Ctr Non ferrous Mines, Beijing 10012, Peoples R China 5.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 7.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England |
| 推荐引用方式 GB/T 7714 | Mao, Qigui,Xiao, Wenjiao,Windley, Brian F.,et al. Early Permian subduction-related transtension in the Turpan Basin, East Tianshan (NW China): implications for accretionary tectonics of the southern Altaids[J]. GEOLOGICAL MAGAZINE,2021,158(1):175-198. |
| APA | Mao, Qigui.,Xiao, Wenjiao.,Windley, Brian F..,Yu, Minjie.,Sun, Min.,...&Zhang, Ji'en.(2021).Early Permian subduction-related transtension in the Turpan Basin, East Tianshan (NW China): implications for accretionary tectonics of the southern Altaids.GEOLOGICAL MAGAZINE,158(1),175-198. |
| MLA | Mao, Qigui,et al."Early Permian subduction-related transtension in the Turpan Basin, East Tianshan (NW China): implications for accretionary tectonics of the southern Altaids".GEOLOGICAL MAGAZINE 158.1(2021):175-198. |
入库方式： OAI收割
来源：地质与地球物理研究所
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