Features and Coal-prospecting Analysis of Thrusting Nappe Structure Coalfield in Siji Mine Area,Longyong Coalfield

Through analysis of the thrusting nappe structure in Siji mine area,Longyan Coalfield,two types of nappe structures,such as interstratified thrusting nappe structure and basement thrusting nappe structure are discovered,which have a certain rules of controling coal-bearing stratum,first,for the interstratified nappe structure,coal-rich zone should be searched along the trend;Second,the basement nappe,it should be done in the underlying system.The study show the right direction of further looking for coal-rich zones in the east of Longyan coalfield.