Eocene magmatism in the Himalaya: Response to lithospheric flexure during early Indian collision?
文献类型：期刊论文
| 作者 | Ma, Lin2,3,4,5; Wang, Qiang2,3,4; Kerr, Andrew C.5; Li, Zheng-Xiang1; Dan, Wei2,3,4 ; Yang, Ya-Nan2,4; Zhou, Jin-Sheng4; Wang, Jun4; Li, Cheng3,4
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| 刊名 | GEOLOGY
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| 出版日期 | 2023 |
| 卷号 | 51期号:1页码:96-100 |
| ISSN号 | 0091-7613 |
| DOI | 10.1130/G50438.1 |
| 英文摘要 | Eocene mafic magmatism in the Himalaya provides a crucial window for probing the evolution of crustal anatexis processes within the lower plate in a collisional orogen. We report geochemical data from the earliest postcollision ocean-island basalt-like mafic dikes intruding the Tethyan Himalaya near the northern edge of the colliding Indian plate. These dikes occurred coeval, and spatially overlap, with Eocene granitoids in the cores of gneiss domes and were likely derived from interaction between melts from the lithosphere-asthenosphere boundary and the Indian continental lithosphere. We propose that these mafic magmas were emplaced along lithospheric fractures in response to lithospheric flexure during initial subduction of the Indian continent and that the underplating of such mafic magmas resulted in orogen-parallel crustal anatexis within the Indian continent. This mechanism can explain the formation of coeval magmatism and the geologic evolution of a collisional orogen on both sides of the suture zone. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001059277800020 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74777]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Ma, Lin; Wang, Qiang |
| 作者单位 | 1.Curtin Univ, Sch Earth & Planetary Sci, Earth Dynam Res Grp, TIGeR, Perth, Australia 2.Chinese Acad Sci, Excellent Ctr Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 5.Cardiff Univ, Sch Earth & Environm Sci, Cardiff CF10 3AT, Wales |
| 推荐引用方式 GB/T 7714 | Ma, Lin,Wang, Qiang,Kerr, Andrew C.,et al. Eocene magmatism in the Himalaya: Response to lithospheric flexure during early Indian collision?[J]. GEOLOGY,2023,51(1):96-100. |
| APA | Ma, Lin.,Wang, Qiang.,Kerr, Andrew C..,Li, Zheng-Xiang.,Dan, Wei.,...&Li, Cheng.(2023).Eocene magmatism in the Himalaya: Response to lithospheric flexure during early Indian collision?.GEOLOGY,51(1),96-100. |
| MLA | Ma, Lin,et al."Eocene magmatism in the Himalaya: Response to lithospheric flexure during early Indian collision?".GEOLOGY 51.1(2023):96-100. |
入库方式： OAI收割
来源：广州地球化学研究所
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