| 中国东南大陆边缘中新生代地幔柱活动的岩石学记录 |
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| 关键词:petrological records mantle plume epicontinental area of Southeast China |
| 基金项目:地质矿产部“九五”重大基础研究项目 |
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| Petrological Records of the Mesozoic-Cenozoic Mantle Plume Tectonics in Epicontinental Area of Southeast China |
| The horizontal collision of the North China block with the Yangtze block as well as the intercontinental subduction of some divergent microcontinental terranes in the southwestern part of the Cathaysian block resulted from the influence of Tethyan tectonic regime during 230～150Ma.The geodynamic background was extension_strike slip_dilation of the Paleopacific ocean plate against the Paleoeurasian continent during 145～70Ma.The southeast China continent has entered the period of continental valley since 60Ma.The magmatic sources from late Mesozoic to Cenozoic were derived from the upper crust through the middle_lower crust continental lithosphere mantle to the asthenosphere mantle,which made up a long and huge tectonomagmatic cycle.Two significant geological inversions of 145±5 Ma and 20±5 Ma established an important link between the plate tectonics and mantle plume tectonics. |
| MAO Jian-ren,TAO Kui-yuan,XING Guang-fu,YANG Zhu-liang,ZHAO Yu.1999.Petrological Records of the Mesozoic-Cenozoic Mantle Plume Tectonics in Epicontinental Area of Southeast China[J].Acta Geoscientica Sinica,20(3):253-258. |
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