| 川中地区基底断裂的发育特征及成因机制 |
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| 引用本文： | 王英民,童崇光,徐国强,樊生利.川中地区基底断裂的发育特征及成因机制[J].成都理工大学学报(自然科学版),1991(3). |
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| 作者姓名： | 王英民 童崇光 徐国强 樊生利 |
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| 作者单位： | 成都地质学院石油地质勘查系
(王英民，童崇光，徐国强)，成都地质学院石油地质勘查系(樊生利) |
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| 摘 要： | 通过对6条区域地震大剖面的研究,揭示了川中地区基底断裂在剖面上和平面上的发育特征。指出基底断层以高角度的逆断层、下正上逆断层和正断层为主。它们在震旦纪已开始发育,在历次构造运动中都有活动。在前中生代主要处于张扭应力背景之下,在中、新生代转化为压扭应为背景。基底断裂在剖面上和平面上都成带发育,构成网格状断裂系统。它们对盖层断裂和褶皱的发育有明显的控制作用。
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| 关 键 词： | 基底断裂 断裂成因机制 构造演化 川中地区 |
ON THE CHARACTERISTICS AND MECHANISM OF BASEMENT FAULTS IN CENTRAL SICHUAN BASIN |
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| Wang Yingmin,Tong Chongguang,Xu Guoqiang,Fan Shengli.ON THE CHARACTERISTICS AND MECHANISM OF BASEMENT FAULTS IN CENTRAL SICHUAN BASIN[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1991(3). |
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| Authors: | Wang Yingmin Tong Chongguang Xu Guoqiang Fan Shengli |
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| Institution: | Wang Yingmin;Tong Chongguang;Xu Guoqiang;Fan Shengli |
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| Abstract: | On the basis of the study of six regional seismic profiles, the characteristics of evolution,both on vertical and horizontal, of basement faults in central Sichuan Basin have been revealed. It ispointed out that the basement faults are mainly high angle reverse faults; and the faults showing nor-mal at lower part and reverse at upper part; as well as normal faults. These faults were formed in Sini-an, and were active during many tectonic movements later. This area was on the tension-shearing back-ground in Pre-Mesozoic Era, and compression-shearing in Meso-Cenozoic Era. These faults show zona-tion both in vertical and horizontal directions, hence, a netting fault system is formed. This system havebeen predominently controlling the development of faults and folds within the covering strata. |
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| Keywords: | basement fault mechanism of faulting structural evolution central Sichuan area |
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