| DISCUSSIONS ON STRUCTURAL COUPLING |
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| 作者姓名： | ZHU Wenbin~* GUO Lingzhi MA Ruishi SUN Yan and WANG Feng |
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| 作者单位： | Department of Earth Sciences，Nanjing University，Nanjing，JS210093，China |
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| 基金项目： | grant provided by the National Key Laboratory for Oil/Gas Reserve Geology and Development Engineering，国家自然科学基金 |
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| 摘 要： | The structural coupling is a common geological phenomenon. The structural differences between eastern and western active continental margins of modern Pacific and between paleo-Pacific and modern-Pacific continental margins are related to the characteristics and status of the subducting oceanic plate, namely, 1. subducting angle; 2. change in subducting angle; 3. subducting velocity; 4. change in subducting velocity; 5. subduction depth; 6. horizontal distance between the leading edge of the subducting plate and the trench; 7. the structural form of the subducting plate at the 670kin boundary between the upper and lower mantle; 8. the displacement and the direction of displacement of subducting plate. The control and influence toward the shallow-level structures by the deep-level structural activities is a detailed representation of the structural coupling on active continental margin. The basin-maintain coupling phenomenon is an intracontinental structural coupling. The far field effect of collision be
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DISCUSSIONS ON STRUCTURAL COUPLING |
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| ZHU Wenbin*,GUO Lingzhi,MA Ruishi,SUN Yan and WANG Feng.DISCUSSIONS ON STRUCTURAL COUPLING[J].Geotectonicaet Metallogenia,2004,28(1):1-17. |
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| Authors: | ZHU Wenbin GUO Lingzhi MA Ruishi SUN Yan WANG Feng |
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| Institution: | Department of Earth Sciences, Nanjing University, Nanjing, JS210093, China |
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| Abstract: | The structural coupling is a common geological phenomenon. The structural differences between eastern and western active continental margins of modern Pacific and between paleo-Pacific and modern-Pacific continental margins are related to the characteristics and status of the subducting oceanic plate, namely, 1. subducting angle; 2. change in subducting angle; 3. subducting velocity; 4. change in subducting velocity; 5. subduction depth; 6. horizontal distance between the leading edge of the subducting plate and the trench; 7. the structural form of the subducting plate at the 670km boundary between the upper and lower mantle; 8. the displacement and the direction of displacement of subducting plate. The control and influence toward the shallow-level structures by the deep-level structural activities is a detailed representation of the structural coupling on active continental margin.The basin-maintain coupling phenomenon is an intracontinental structural coupling. The far field effect of collision between Indian plate and Eurasian plate results in the occurrence of intracontinental A-type subduction in central Asia, and the A-type subduction is the key factor that results in the atrophy of basins and the formation of mountain systems. |
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| Keywords: | structural coupling Pacific Ocean Northwest China active continental margin intracontinent |
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