Geological structural and coal control pattern in the west of Huanxian, Gansu

In order to understand the geology structural and coal control pattern in the west of Huanxian, analysis on the formation and evolution process of strata and structure in the region was made.According to the analysis, it is known that the facts that act on the regularities of distribution of the coal measures strata and the coal seam include basement structure, with the sedimentary structures of control and the transformation of post-tectonic activity and other facts.Acoordingly, in the future, the key areas where coal can be found are Qinglongshan fault-fold zones and the depression of Shajingzi fault-fold belt.