| Continental- Margin Structure of Northeast China and Its Adjacent Areas |
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| 作者姓名： | Tang Kedong Shenyang Institute of Geology and Mineral Resources Shenyang Liaoning ProvinceWang Ying Bureau of Geology and Mineral Resources of Heilongjiang Province Harbin HeilingjiangHe Guoqi and Shao Ji'an Peking U niversity Beijing Liu Xinzhu |
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| 作者单位： | Tang Kedong，Shenyang Institute of Geology and Mineral Resources，Shenyang，Liaoning ProvinceWang Ying，Bureau of Geology and Mineral Resources of Heilongjiang Province，Harbin，HeilingjiangHe Guoqi and Shao Ji'an Peking U niversity，Beijing Liu Xinzhu |
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| 基金项目： | A Project supported by the National Natural Science Foundation of China (Nos.9487001,49173131) |
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| 摘 要： | The continental margin of Northeast China and its adjacent areas is composed of two tectonic belts. The inner belt is a collage made up of fragments resulting from breakup of an old land with the north part related to the evolution of the Palaeo-Asian Ocean and the south part to the evolution of the Palaeo - Pacific Ocean. The outer belt is a Mesozoic terrane, which is a melange made up of fragments of the Late Palaeozoic to Early Mesozoic oceanic crust and the Late M esozoic trench accumulations.There existed another ocean-the Palaeo - Pacific Ocean during the period from the closing of the Palaeo-Asian Ocean to the opening of the modern Pacific Ocean or from the Devonian to Jurassic, and the ocean-floor spreading of the Palaeo - Pacific Ocean led to the formation of the above-mentioned tectonic belts. The development of the strike-slip fault system after the Late Jurassic and the formation of an epicontinental volcano -plutonic rock belt in the Late Cretaceous to Early Tertiary are attributed to the i
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Continental- Margin Structure of Northeast China and Its Adjacent Areas |
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| Authors: | Tang Kedong Shenyang Institute of Geology and Mineral Resources Shenyang Liaoning ProvinceWang Ying Bureau of Geology and Mineral Resources of Heilongjiang Province Harbin HeilingjiangHe Guoqi and Shao Ji'an Peking U niversity Beijing Liu Xinzhu |
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| Abstract: | The continental margin of Northeast China and its adjacent areas is composed of two tectonic belts. The inner belt is a collage made up of fragments resulting from breakup of an old land with the north part related to the evolution of the Palaeo-Asian Ocean and the south part to the evolution of the Palaeo - Pacific Ocean. The outer belt is a Mesozoic terrane, which is a melange made up of fragments of the Late Palaeozoic to Early Mesozoic oceanic crust and the Late M esozoic trench accumulations.There existed another ocean-the Palaeo - Pacific Ocean during the period from the closing of the Palaeo-Asian Ocean to the opening of the modern Pacific Ocean or from the Devonian to Jurassic, and the ocean-floor spreading of the Palaeo - Pacific Ocean led to the formation of the above-mentioned tectonic belts. The development of the strike-slip fault system after the Late Jurassic and the formation of an epicontinental volcano -plutonic rock belt in the Late Cretaceous to Early Tertiary are attributed to the interaction between the modern Pacific plate and the Eurasian plate. |
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| Keywords: | continental-margin structure Bohai Sea block Mesozoic terrane non- subducted ocean crust Palaeo - Pacific Ocean |
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