| 东南亚断裂构造的演化 |
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| 引用本文： | 高庭朝,阮友宣,黎文勇,范南雄,Mai Xuan Bach,Thai Anh Tuan.东南亚断裂构造的演化[J].大地测量与地球动力学,2005,25(1):51-60. |
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| 作者姓名： | 高庭朝 阮友宣 黎文勇 范南雄 Mai Xuan Bach Thai Anh Tuan |
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| 作者单位： | 越南国家自然科学与技术中心,地球物理研究所;越南国家自然科学与技术中心,地球物理研究所;越南国家自然科学与技术中心,地球物理研究所;越南国家自然科学与技术中心,地球物理研究所;越南国家自然科学与技术中心,地球物理研究所;越南国家自然科学与技术中心,地球物理研究所 |
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| 摘 要： | 本研究项目是采用诸如地质学解释、影像判读和地球物理探测等多种方法相结合进行的。在所得结果的基础上参考了越南国内外同行的一些资料编制了东南亚、越南及邻区的断裂构造图．其比例尺分别为1：4百万和1：1百万。分析所得结果显示出东南亚断裂构造演化的下列情况：1)在现今地质结构方面东南亚是欧亚岩石圈板块的东南部分．由一条消减带围绕．这条消减带的伸展从Myanmer开始，通过Nicobar，Java Timor直到东菲律宾。东南亚被Song Hong(即红河)断裂，Three Pagodas断裂和Hainam-Natuna断裂等2级断裂系统分成3个微板块。2)在早新生代．东南亚是分为5个微板块的。它们的分界断裂中有2个一级断裂(中央东海扩张带和Lupar-Kuching消减带)和3个二级断裂(即上述3个)。3)上述绝大多数二和三级断裂从晚新生代起活化且继承了从早新生代即已发生和发展了的二、三级断裂，但在某些条件下．运动方向却完全变成了相反，尤其是走滑运动的方向。我们的研究结果表明：在这一地区内，盆地、隆起、岩浆侵入、褶皱和局部断裂等构造的形成都取决于这些沿着一、二级走滑断裂的微板块运动。
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| 关 键 词： | 断裂构造 演化 东南亚 越南及邻区 早新生代 |
EVOLUTION OF FAULTING TECTONICS IN SOUTHEAST ASIA |
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| Cao Dinh Trieu,Nguyen Huu Tuyen,Le Van Dung,Pham Nam Hung,Mai Xuan Bach,Thai Anh Tuan.EVOLUTION OF FAULTING TECTONICS IN SOUTHEAST ASIA[J].Journal of Geodesy and Geodynamics,2005,25(1):51-60. |
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| Authors: | Cao Dinh Trieu Nguyen Huu Tuyen Le Van Dung Pham Nam Hung Mai Xuan Bach Thai Anh Tuan |
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| Abstract: | In this research project, the combination of methods such as geological data interpretation, image interpretation and geophysical survey is used.On the basis of the obtained results and referenced data from colleagues in Vietnam and abroad, the faulting tectonic map of SE Asia at 1:4 000 000 scale and of Vietnam and adjacent areas at 1:1 000 000 scale have been compiled.The analysis of the obtained results shows that: 1) In the present geostructural respect, SE Asia is a SE part of the Eurasian lithosphere plate, surrounded by a subduction zone (first order fault) extending from Myanmar through Nicobar, Java, Timor, to East Philippines.SE Asia is divided into three micro plates by the system of second order faults:Song Hong fault (Red River fault), Three Pagodas fault and Hainam-Natuna fault. 2) In Early Cenozoic Era, SE Asia was divided into 5 micro plates, the boundaries between them were two faults at first order(the Central East Sea spreading zone and the Lupar-Kuching subduction zone) and three faults of second order(Red River fault, Three pagodas fault and Hainam-Natuna fault). 3) Most of the faults of second and the third order have been activated since Late Cenozoic, which inherited the second and third order faults which had already generated and developed in Early Cenozoic, but on some conditions they have changed completely into reverse movement directions, especially for their strike-slip movements.As our research results, the formation of the basins, uplifts, magmatic intrusions, folding and local faulting in this area depend on the movement of the micro plates along the first and the second order strike-slip faults. |
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| Keywords: | faulting tectonics evolution Southeast Asia Vietnam and adjacent areas early cenozoic |
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