| 白垩纪?古近纪古生物地理区的变化与印度和亚洲的碰撞 |
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| 作者姓名： | WAN Xiao-qiao LI Guo-biao JIANG Tian |
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| 作者单位： | State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences |
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| 摘 要： | Geologic studies of the Late Creta-ceous Paleogene stratigraphic record of southern Tibet reveal distinct episodes of collision and post collisional compression. The composition of sediments exposed along the Indus-Yarlung Zangbo suture, tectonic deformation, paleomagnetism, mag-matic activity of the Gangdese Arc, high pressure metamorphism, paleobiogeography and terrestrial bi-ota changes have been variously used to diagnose the timing of Indian-Eurasian continental plates collision. Among them, paleobiogeography and marine facies cessation are visible scenarios to trace the continental collision. This study recognized that dramatic changes of paleobiogeography happened during early Paleo-gene.
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| 关 键 词： | India-Asian collision Orbitolinids Bivalve Paleobiogeography |
Paleobiogeographical Change and India-Asian Collision during Cretaceous-Paleogene Period |
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| WAN Xiao-qiao,LI Guo-biao,JIANG Tian.Paleobiogeographical Change and India-Asian Collision during Cretaceous-Paleogene Period[J].Acta Geoscientia Sinica,2012,33(S1):69-71. |
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| Authors: | WAN Xiao-qiao LI Guo-biao and JIANG Tian |
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| Institution: | State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences;State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences |
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| Abstract: | Geologic studies of the Late Creta-ceous Paleogene stratigraphic record of southern Tibet reveal distinct episodes of collision and post collisional compression. The composition of sediments exposed along the Indus-Yarlung Zangbo suture, tectonic deformation, paleomagnetism, mag-matic activity of the Gangdese Arc, high pressure metamorphism, paleobiogeography and terrestrial bi-ota changes have been variously used to diagnose the timing of Indian-Eurasian continental plates collision. Among them, paleobiogeography and marine facies cessation are visible scenarios to trace the continental collision. This study recognized that dramatic changes of paleobiogeography happened during early Paleo-gene. |
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| Keywords: | India-Asian collision Orbitolinids Bivalve Paleobiogeography |
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