Analysis of Inversion Structural Styles in South Guizhou Depression

tectonic styles in prototype stage, the strati graphic inversion types and identification standard of the present sequence of structure styles(Harding, T. P., 1983,1984; M. A. Cooper and G. D. Williams, 1989; Letouzey, J., 1990; Hu Wangshui, et al, 2007), we distinguished 4 kinds of tectonic styles in South Guizhou Depression. They are flower structure prototype twist pressure reverse faulttrough like folds (Fig.1), (semi) graben prototype(strong) twist-compression reverse fault raceway fault propagation synclinorium(Fig.2), Slide off prototype(strong) twist-compression reverse faultcomplex fault propagation anticlinorium(Fig.3), Stepped off prototypeweak twist-compression reverse fault ejective fault propagation fold(Fig.4). This area is located in the intersection of three major tectonic domain (Bureau of Geology and Mineral Resources of Guizhou Province, 1987; Wang Yangeng, 1996), and it went through basement forming, 3 stages prototype basin development, 3 stages strong inversionmodify within land(Wang Chunhou, 1999; Yang Songping, 1998; Yang Guangzhong, 2005; Huang Daoguang, et al, 2010), formed a very complex structure pattern now. Multi-phase rifting(Dai Chuangu, et al, 2010), multiimbalance positive inversion(Chen Shu rong, et al, 2007) and fault propagation fold associated with twistcompression and thrust, all the above determine that the positive inversion is the major structural style, which also control the structural characteristics and the formation of structural styles.