| 晚侏罗世东亚多向汇聚构造体系的形成与变形特征 |
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| 关键词:Late Jurassic East Asian multi-direction convergent tectonic system geodynamics deformation |
| 基金项目:973项目“大陆深俯冲作用”(编号:199905505); 地质大调查项目“亚洲中部及邻区1:250万地质图系”(编号:1212010811064); 中石化项目“大巴山前陆演化与油气远景”(编号:海相勘探—02); 国家自然科学基金项目(编号:40572120) |
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| The Formation and Deformational Characteristics of East Asia Multi-Direction Convergent Tectonic System in Late Jurassic |
| The accumulation of new data of plate tectonics and high-resolution isotopic dating brings on the profound understanding of the tectonic events in eastern China during the Late Jurassic to Early Cretaceous.The simultaneous opening of three major global oceans during Late Jurassic(since 165±5 Ma) and subduction of paleo-Pacific,Neo-Tethys and Mongolia-Okhotsk oceans around East Asia,forms Yanshanian multi-direction compressional and convergent tectonic system in eastern China and East Asia,which is named as East Asian multi-direction convergent tectonic system(i.e.,East Asia Convergence).The East Asia Convergence initiates the classical Yanshan Movement,resulting in characteristic deformation styles in East China.The stable Ordos and Sichuan blocks compose the two rigid continental cores in the system,with Late Jurassic to Early Cretaceous multi-direction compressional deformation and foreland basins formed around them.Additionally,the East Asia Convergence affects the intra-plate deformation in east and central Asia during Yanshan movement,forms conjugated NS compressional Mongolian Arc of strike-slip and thrust fault system,and intracontinental Yanshan-Yinshan and Dabieshan-Dabashan orogenes.The East Asia Convergence,with profound global tectonic settings and dynamic origin,is an important scientific topic. |
| DONG Shu-wen,ZHANG Yue-qiao,CHEN Xuan-hua,LONG Chang-xing,WANG Tao,YANG Zhen-yu,HU Jian-min.2008.The Formation and Deformational Characteristics of East Asia Multi-Direction Convergent Tectonic System in Late Jurassic[J].Acta Geoscientica Sinica,29(3):306-317. |
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