摘要

Based on the theory and method of structural geology, through the systemic analysis on seismic data, the author researched on characteristics of structure geometry and kinematics, and its dynamics mechanism: There are a series of half-grabens in the Lower-Middle Cambrian Series of the Central Uplift Belt, and they are located in Bachu uplift and the southwestern area of Tazhong uplift. Based on the special basement, tectonic movements, including extension and compression are the main factors of forming half-grabens. The residual gravity anomaly high is accord with the distribution of half-grabens, the strike of buried fault and half-graben is concordant.