| 红河断裂构造带在东南亚的延伸特征及其大地构造意义 |
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| 引用本文： | 李桂群,李学伦.红河断裂构造带在东南亚的延伸特征及其大地构造意义[J].中国海洋大学学报(自然科学版),1990(2). |
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| 作者姓名： | 李桂群 李学伦 |
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| 作者单位： | 青岛海洋大学海洋地质系
(李桂群)，青岛海洋大学海洋地质系(李学伦) |
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| 摘 要： | 根据地质、地貌及地球物理资料分析,探讨展布于云南边陲哀牢山两侧的北西向断裂组成的红河断裂构造带,在东南亚的延伸特征。提出在该延伸带两侧沉积建造、构造活动,地球物理场和大地构造发展上均有显著差异。并进一步探讨该断裂构造带在大地构造上的意义。
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| 关 键 词： | 红河断裂构造带 东南亚 延伸特征 大地构造意义 太平洋构造系 特提斯构造系 |
EXTENDED CHARACTERISTICS IN THE SOUTHEAST ASIA OF THE HONGHE RIVER FAULT TECTONIC ZONE AND ITS GEOTECTONIC SIGNIFICANCE |
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| Li Guiqun Li Xuelun.EXTENDED CHARACTERISTICS IN THE SOUTHEAST ASIA OF THE HONGHE RIVER FAULT TECTONIC ZONE AND ITS GEOTECTONIC SIGNIFICANCE[J].Periodical of Ocean University of China,1990(2). |
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| Authors: | Li Guiqun Li Xuelun |
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| Institution: | Department of Marine Geology |
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| Abstract: | On the basis of geological, geomophological and geophysical analysis, the authors researched into the extended characteristics in the Southeast Asia of the Honghe River Fault zone, which extends along both sides of the Ailao Mountains in the Yunnan border area of China and consists of a series of faults in the NW direction. There are enormous differences between the two sides of the tectonic zone in sedimentary formation, tectonic activity, geophysical fields and geotectonic development Hence the authors assume:1) The characteristics of the Pacific Tectonic System appears in the east of the tectonic zone, and the characteristics of the Tethys Tectonic System occurs in the west side of the zone So the tectonic zone is regarded as the boundary line between the two tectonic systems. The boundary line between the surrounded Pacific Tectonic Belt and the Tethys Tectonic Belt advanced by Professor Huang Jiqing may continuously extend to the Southeast Asia along the tectonic zone2) The tectonic zone was a subduction zone, there the Indian Plate subducted twoards the Asia Plate during the Middle Triassic. While the Pacific Plate subducted towards the Asia continent during the Cenozoic, the South China Sea Block disintegrated. It turned to one which possessed the characteristics of the transform fault while the South China Sea Basin Spread.3) . The east side of the tectonic zone is characterized by being of the West Pacific Margin which is developing the trench-arc-backarc-basin system, and the west side of the zone is characterized by being the Indian Ocean Margin which has not developed any spreading backarc-basin and has possessed trench-arc systems.4) . The two sides of the tectonic zone have different special minerogenetic propertiesbecause of their difference of the geotectonic characteristics. |
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| Keywords: | Honghe River Fault Tectonic Zone Southeast Asia extended characteristics geotcctonic significance Pacific Tectonic system Tethys tectonic System |
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