| 特提斯喜马拉雅多重基性岩浆事件：追溯新特提斯洋的生存时限 |
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| 作者姓名： | ZENG Ling-sen GAO Li-e HE Ke-jun TANG Suo-han GUO Chun-li |
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| 作者单位： | State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences;State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences;Institute of Mineral Resources, Chinese Academy of Geological Sciences;State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences;State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences |
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| 基金项目： | the SinoProbe Project (SinoProbe-2-6) and National Natural Science Foundation of China (41073024, 41273034) |
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| 摘 要： | Processes accompanied the breakup of continents, spreading of ocean floor and continent-ocean transi-tion could trigger large scale melting of the mantle beneath the continent as well as the ocean, and pro-duce mafic magmas with distinct geochemical charac-teristics. Such rocks provide us an important record for unraveling the nature and the time of deep tectonic and magmatic processes during the tectonic evolution of large-scale orogenic belts, such as the Himalayan orogenic belt. As an integrated part of the Himalaya, the Tethyan Himalaya consists of well-developed early Paleozoic to Cenozoic sediments and is noted for de-velopment of spectacular semi-continuous, thousand kilometers long gneiss (or granitic) domes. It has pre-served critical records to address the nature of defor-mation, magmatism, and metamorphism associated with the opening, spreading, and demise of the Neo-Tethyan Ocean and the final continental collision between the Indian and the Eurasian Plate at the early Cenozoic time. In addition, it also could be a type-example to address a number of first-order issues with regard to the tectonic dynamics of passive conti-nental margin during the Wilson-cycle.
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| 关 键 词： | Tethyan Himalaya Neo-Tethys India-Eurasia collision Mafic Magmatism |
Multiple Mafic Magmatic Events along the Tethyan Himalaya: Trac-ing the Life-time of the Neo-Tethyan Ocean |
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| ZENG Ling-sen,GAO Li-e,HE Ke-jun,TANG Suo-han,GUO Chun-li.Multiple Mafic Magmatic Events along the Tethyan Himalaya: Trac-ing the Life-time of the Neo-Tethyan Ocean[J].Acta Geoscientia Sinica,2012,33(S1):72-73. |
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| Authors: | ZENG Ling-sen GAO Li-e HE Ke-jun TANG Suo-han and GUO Chun-li |
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| Institution: | State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences;State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences;Institute of Mineral Resources, Chinese Academy of Geological Sciences;State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences;State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences |
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| Abstract: | Processes accompanied the breakup of continents, spreading of ocean floor and continent-ocean transi-tion could trigger large scale melting of the mantle beneath the continent as well as the ocean, and pro-duce mafic magmas with distinct geochemical charac-teristics. Such rocks provide us an important record for unraveling the nature and the time of deep tectonic and magmatic processes during the tectonic evolution of large-scale orogenic belts, such as the Himalayan orogenic belt. As an integrated part of the Himalaya, the Tethyan Himalaya consists of well-developed early Paleozoic to Cenozoic sediments and is noted for de-velopment of spectacular semi-continuous, thousand kilometers long gneiss (or granitic) domes. It has pre-served critical records to address the nature of defor-mation, magmatism, and metamorphism associated with the opening, spreading, and demise of the Neo-Tethyan Ocean and the final continental collision between the Indian and the Eurasian Plate at the early Cenozoic time. In addition, it also could be a type-example to address a number of first-order issues with regard to the tectonic dynamics of passive conti-nental margin during the Wilson-cycle. |
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| Keywords: | Tethyan Himalaya Neo-Tethys India-Eurasia collision Mafic Magmatism |
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