用反常系数法探讨三峡地区的断裂活动性
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摘要
利用反常系数法对三峡地区的断裂活动性进行了初步研究,认为反常系在空间上呈带状异常分布,断裂通过处K值系数发生突变,在排除非构造因素后,可作为断裂活动性的一种标志;还认为三峡地区的高桥断裂、水田坝断裂、雾渡河断裂、仙女山断裂和九湾溪断裂均属活动性断裂.
The abnormal coefficient method is used preliminarily in Studying the activity of faults in the Three-Gorges region. The results indicate that the distributions of the abnormal coefficient show a distinct belted nature. The anomalous value change suddenly near the fault This is a sign of active fault in case nontectonic factors are eliminated. Furtheumore, Gaoqiao fault, Shulthaba fault, Wudu Creek fault, Xiannu Mountain fault and Jiuwan Creek fault are regarded as active faults in the Three-Gorges region.
引文
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