BASIC STRCUTURAL PATTERN AND TECTONIC MODELS OF THE SOUTH CHINA SEA: PROBLEMS, ADVANCES AND CONTROVERSIES: BASIC STRCUTURAL PATTERN AND TECTONIC MODELS OF THE SOUTH CHINA SEA: PROBLEMS, ADVANCES AND CONTROVERSIES
BASIC STRCUTURAL PATTERN AND TECTONIC MODELS OF THE SOUTH CHINA SEA: PROBLEMS, ADVANCES AND CONTROVERSIES: BASIC STRCUTURAL PATTERN AND TECTONIC MODELS OF THE SOUTH CHINA SEA: PROBLEMS, ADVANCES AND CONTROVERSIES
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DOI：
10.3724/sp.j.1140.2012.06035
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发表时间：
2013-02
期刊：
影响因子：
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通讯作者：
Li Sanzhong;Y. Suo;Xin Liu;L. Dai;Shan Yu;Shujuan Zhao;Yun Ma;Xiaofei Wang;S. Cheng;Y. Xue;Lijuan Xiong;Huiting An
中科院分区：
文献类型：
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作者：
Li Sanzhong;Y. Suo;Xin Liu;L. Dai;Shan Yu;Shujuan Zhao;Yun Ma;Xiaofei Wang;S. Cheng;Y. Xue;Lijuan Xiong;Huiting An
南海位于欧亚板块、印澳板块和太平洋板块的交汇处，是沿着东亚大陆边缘最大的大陆边缘海，经历了复杂的大陆边缘类型转换，北方边缘80 Ma前为安第斯型大陆边缘，始新世为裂谷大陆边缘，中新世中期为典型的被动大陆边缘，17 Ma前为开放水域，6 Ma以来，南海半封闭盆地由单向俯冲到双向俯冲，逐渐成为沟-弧-盆体系的俯冲带，34 Ma以来，西缘逐渐转变为走滑断裂或转换断裂的大陆边缘，34 Ma以前，南缘为与北方边缘相对应的不对称裂谷型大陆边缘，南海复杂的动力学背景引起了许多争议，板块动力学因素既有太平洋板块俯冲，菲律宾海板块沿着台湾造山带向南海东侧凹陷，与此同时，深部岩浆底侵、拆沉、地幔柱和地幔水化作用等地幔动力学也不容忽视。
The South China Sea is located at a juncture among the Eurasian,the Indian-Australian and the Pacific plates,being the largest continental marginal sea along the East Asian continental margin.It has experienced a complex transition of continental marginal types.The northern margin was an Andean-type continental margin before 80 Ma,then gradually transferred into a rifted continental margin in the Eocene and a typical passive continental margin since the middle Miocene.The eastern margin was an open water before 17 Ma and gradually became a subduction zone of the trench-arc-basin system by one-way subduction to double-way subduction,when the South China Sea became semi-closed basin since 6 Ma.The western boundary gradually transformed into a continental margin with strike-slipping faulting or transform faulting since 34 Ma.The southern margin was an asymmetric rift-type continental margin corresponding to the northern margin before 34 Ma,and became a passive continental margin during 34~16 Ma and gradually a thrusting-type continental margin after 16 Ma.Complex dynamic settings of the South China Sea have caused many controversies on their origin.The plate dynamic factors include either the Pacific Plate subduction and the indentation of the Philippine Sea Plate along the Taiwan Orogen to the east side the South China Sea,or the Indian Plate oblique subduction and mid-ocean ridge subduction to the west side.They may also be responsible for the uplifting of the Tibetan Plateau and the related extrusions of continental blocks to the north side.At the same time,the mantle dynamics of deep-seated magma underplating,delamination,mantle plume and mantle-hydrated process should not be ignored.