Petrogenesis of Late Carboniferous-Early Permian mafic-ultramafic-felsic complexes in the eastern Central Tianshan, NW China: The result of subduction-related transtension?
文献类型：期刊论文
| 作者 | Mao, Qigui2,3,6; Ao, Songjian4,5,6; Windley, Brian F.1; Zhang, Zhiyong4,6; Song, Dongfang4,6; Zhang, Ji'en4,6; Wan, Bo4,6; Tan, Wei3; Han, Chunming4,5,6; Xiao, Wenjiao2,4,5,6,7 |
| 刊名 | GONDWANA RESEARCH
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 95页码:72-87 |
| ISSN号 | 1342-937X |
| 关键词 | Mafic-ultramafic-felsic complexes Late Carboniferous Fractionation Transtension Eastern Central Tianshan |
| DOI | 10.1016/j.gr.2021.03.007 |
| 英文摘要 | Knowledge of the Late Paleozoic accretionary processes responsible for the Altaids (or southern Central Asian Orogenic Belt) is critical for a better understanding of continental growth in Central Asia. Here, we systematic study the Late Carboniferous mafic-ultramafic-felsic complexes in eastern Central Tianshan to understand the tectonic evolution of the southern Altaids. Two gabbros yield zircon crystallization ages of 301.5 +/- 2.3 Ma and 300.7 +/- 2.6 Ma and one granite is dated as 301.6 +/- 1.5 Ma. The gabbros are tholeiitic and characterized by typical subduction-related geochemical signatures with low TiO2 contents, enrichments in Rb, Ba, U, K, Pb and Sr, negative Nb and Ta anomalies, and negative to positive Eu and Ti anomalies. The granites are the A2-type granites with high contents of SiO2, K2O + Na2O, Ga, Zr, Nb, Y, HFSE, REE, and high ratios of Fe/Mg and Y/Nb (>1.2). The gabbros and granites have high eNd (t) values of +1.64 to +5.03, zircon eHf (t) values of -2.8 to +9.1, and low (87Sr/86Sr)i (0.704007 & ndash;0.705437) values. These geochemical characters demonstrate that the rocks in the complexes are fractionation genesis and that the A-type granitic rocks are the highest fractionation facies of tholeiitic mafic rocks. These results suggest that they were originated from the asthenospheric garnet-free mantle in a supra-subduction zone. Combined with regional data, we suggest that the oblique subduction with slab break-off of the Southern Tianshan oceanic plate plausibly induced asthenospheric upwelling to form the tholeiitic magma, and which intrude along the strike-faults the Central Tianshan-Yamansu arc. Accordingly, these results reveal the Paleo-Asian Ocean continued to subduct at the southern Altaids in the Late Carboniferous. (c) 2021 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | ASIAN OROGENIC BELT ; A-TYPE GRANITES ; LARGE IGNEOUS PROVINCE ; U-PB AGE ; AQISHAN-YAMANSU BELT ; TECTONIC EVOLUTION ; NORTHWEST CHINA ; VOLCANIC-ROCKS ; POSTCOLLISIONAL EXTENSION ; CONTINENTAL GROWTH |
| 资助项目 | National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41822204] ; National Key R&D Program of China[2017YFC0601201] ; BR Project CAS ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences[131551KYSB20200021] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000651348100006 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 ; BR Project CAS ; BR Project CAS ; BR Project CAS ; BR Project CAS ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences ; Key Project of the ChinaPakistan Joint Research Center on Earth Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101222]  |
| 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, Sch Geog Geol & Environm, Leicester LE1 7RH, Leics, England 2.Chinese Acad Sci, Xinjiang Res Ctr Mineral Resources, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 3.Beijing Inst Geol Mineral Resources, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 5.Chinese Acad Sci, China Pakistan Joint Res Ctr Earth Sci, Beijing, Peoples R China 6.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China 7.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Qigui,Ao, Songjian,Windley, Brian F.,et al. Petrogenesis of Late Carboniferous-Early Permian mafic-ultramafic-felsic complexes in the eastern Central Tianshan, NW China: The result of subduction-related transtension?[J]. GONDWANA RESEARCH,2021,95:72-87. |
| APA | Mao, Qigui.,Ao, Songjian.,Windley, Brian F..,Zhang, Zhiyong.,Song, Dongfang.,...&Xiao, Wenjiao.(2021).Petrogenesis of Late Carboniferous-Early Permian mafic-ultramafic-felsic complexes in the eastern Central Tianshan, NW China: The result of subduction-related transtension?.GONDWANA RESEARCH,95,72-87. |
| MLA | Mao, Qigui,et al."Petrogenesis of Late Carboniferous-Early Permian mafic-ultramafic-felsic complexes in the eastern Central Tianshan, NW China: The result of subduction-related transtension?".GONDWANA RESEARCH 95(2021):72-87. |
入库方式： OAI收割
来源：地质与地球物理研究所
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