涟邵煤田滑来峰构造成因的探讨

涟邵煤田已初步查明的滑来峰有25块之多,它们多发育在测水组及其上、下地层之中,这是由于该岩层的软弱层（泥质岩+煤层）所占比例较大（＞50％）的缘故。归纳诸滑来峰的特征,其形成机理有三种:其一为后根部顺层滑移,当滑脱面由浅变深时切层,中部大体顺层滑移,至前缘又有切层现象的经典滑覆构造;其二为与断层相关的滑来峰,它是在断层挤压状态结束以后出现的伸展体制中,断层下盘在重力作用下迁就地形下滑的结果;其三为与复杂的倒转、平卧褶皱相关的滑来峰,近似于近代滑坡形成的机制。 

A STUDY ON THE GENESIS OF THE NAPPE OUTLIERS IN LIANSHAO COAL-FIELD

As many as 25 nappe outliers have been preliminary determined in Lianshao coal-field.They were developed mostly in Ceshui Formation and its overlying or underlying strata.This phenomenon was resulted from a high percentage（more than 50％）of soft rocks（coal and shale）in the strata.According to the characteristics,there are three formation mechanisms:1)Classical overlap glides;2)Fault-related outliers and 3)Ouliers related to complex overfolds and recumbent folds.