摘要
By analyzing features of numerous structures in the Zhangji Coalmine, Huainan area, the interlayer-gliding structures are classified into two basic types: the corrugation type and fracture type. According to the assemblages of the two types of interlayer-gliding structures, they can be further subdivided into domino-style, graben-and-horst, step-fault, “y” and “anti-y” structures. Experimental modeling is employed to investigate the mechanism (s) of the different types of interlayer-gliding structures. The vitrinite reflectance anisotropy data revealed at least two stages of tectonic stress since Mesozoic in the Zhangji Coalmine. The experimental modeling indicates that the NWW-SEE direction extensional stress was probably the main dynamic factor controlling the geometry of the interlayer-gliding structures in the Zhangji Coalmine.