Late Triassic rifting and volcanism on the northeastern Indian margin: A new phase of Neo-Tethyan seafloor spreading and its paleogeographic implications
文献类型：期刊论文
| 作者 | Meng, Zhongyu1,4; Wang, Jian-Gang1; Garzanti, Eduardo2; Han, Zhong3; Chen, Guohui1 |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2021-05-15 |
| 卷号 | 570页码:15 |
| 关键词 | Tethys Himalaya Late Triassic Rift-related volcanism Langjiexue deposystem Neo-Tethyan paleogeography |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2021.110367 |
| 英文摘要 | The stratigraphic record of the northern Indian margin documents tectonic extension and magmatic activity during the Late Triassic. The geodynamic process and the paleogeographic implications of this event remain, however, incompletely understood. This study presents new stratigraphic, petrographic, geochronologic and geochemical data from a mixed carbonate-clastic Upper Triassic succession of the Tethys Himalaya in southern Tibet (Tela Formation). The new finding of volcanic detritus with bimodal mafic/felsic composition in the Tela Formation indicates nearby volcanic activity constrained by detrital zircon U-Pb dating as latest Carnian to early Norian in age (229-223 Ma). The alkalic signature of mafic volcanic rock fragments, showing LREE enrichment and HREE depletion, indicates a within-plate extensional setting. The igneous activity in north-eastern India compares with coeval volcanism in northwestern Australia, suggesting that a rift-related volcanic belt developed along the northern margin of eastern Gondwana in the Late Triassic. This volcanic belt controlled the accumulation of thick turbidites of the Langjiexue Group in northeastern India and induced accelerated tectonic subsidence and increased sedimentation rates all along the Tethys Himalayan zone as far west as the Zanskar-Spiti Synclinorium. This major rifting phase is suggested to have initiated a new phase of sea-floor spreading in the Neo-Tethys Ocean that torn off the Lhasa Block from eastern Gondwana. |
| 资助项目 | Basic Science Center Program[41888101] ; National Natural Science Foundation of China[42072133] ; National Natural Science Foundation of China[41672109] ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000639124500016 |
| 出版者 | ELSEVIER |
| 资助机构 | Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; Basic Science Center Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences ; Youth Innovation Promotion Associate Project of Chinese Academy of Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101148]  |
| 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 | Wang, Jian-Gang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China 2.Univ Milano Bicocca, Dept Earth & Environm Sci, Lab Provenance Studies, I-20126 Milan, Italy 3.Chengdu Univ Technol, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610059, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Zhongyu,Wang, Jian-Gang,Garzanti, Eduardo,et al. Late Triassic rifting and volcanism on the northeastern Indian margin: A new phase of Neo-Tethyan seafloor spreading and its paleogeographic implications[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,570:15. |
| APA | Meng, Zhongyu,Wang, Jian-Gang,Garzanti, Eduardo,Han, Zhong,&Chen, Guohui.(2021).Late Triassic rifting and volcanism on the northeastern Indian margin: A new phase of Neo-Tethyan seafloor spreading and its paleogeographic implications.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,570,15. |
| MLA | Meng, Zhongyu,et al."Late Triassic rifting and volcanism on the northeastern Indian margin: A new phase of Neo-Tethyan seafloor spreading and its paleogeographic implications".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 570(2021):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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