贵州从江南加逆冲断层系的基本特征及其意义

Elemental Characteristic of Nanjia Overthrust System, Congjiang, Guizhou and Its Geological Significance

南加逆冲断层系走向近东西,倾向北。剖面上由主道冲断层和一系列次级逆冲断层组成叠瓦状逆冲推覆断层组合。运动学特征反映出具由北东向南西逆冲的性质,同位素资料显示其形成于印支组。该断层系对研究黔东南地区的地质构造具一定的地质意义。

Nanjia Overthrust system is in striking near-east-west and trends towards north. The association of imbricate overthrust nappe is composed of the main overthrust and a series of sub-overthrust. The characteristic of its kinematics expresses it to be faced by northeast to southwest overriding. The data of isotope shows that forms during the Yinzhi Period. The overthrust system is significant for researching the tectonics in southeastern Guizhou.