湖南涟邵煤田渣渡矿区推(滑)覆构造特征及找煤意义

Characters of Nappe Formation and Prospecting Significance of Zhadu Coal District of Linanshao Coalfield in Hunan

湖南涟邵煤田渣渡矿区是湘中最重要的煤产地之一，含煤岩系主要为测水组，含煤1—6层，主要煤层为3、5煤层，矿区为一向斜构造，向斜四周发育推（滑）覆断裂（L32），该断裂顺柔性岩层测水组一梓门桥组泥灰岩段发生，产状与地层产状基本一致，并沿走向及倾向具波状起伏，对煤层响较大，主要造成煤层厚度、结构变化、煤层断失，煤系及煤层重复，解剖该断裂特征对矿区本身及指导涟邵煤田其它地段推覆构造下找煤具有重要意义。

Zhadu coal district is one of the most important coal district in the middle of Hunan, the main coal system is Ceshui formation, contains coal 1 - 6 bed, main coal seam is 3 and 5 coal seam. The constructures of Zhadu coal district is a syncline, all sides of syncline grow F32 fracture, F32 fracture take place in Ceshui formation - Zimengqiao ruination marl, which is agreeable and gentle rock strata, occurrence of F32 is in accordance with the stratum occurrence basicly, and along the strike and dip have a form rise and fall, effect on the coal seam, result in the coal seam the thickness, texture primarily the variety, coal seam break to lose,the coal measures and coal seam repeat, dissecting the fracture＇ s characteristic to coal district oneself and guide the other district in coalfield biding thrust descend to seek the coal which have important significance.