一个引人注目的地质现象展布在豫西晚古生代煤产地中(图1)。地质时代较新的岩系,以非正常接触关系覆盖在含煤岩系之上,接触面上下构造特征迥然不同,构成了含煤盆地剖面的“双层”结构。这种现象目前俗称为“表皮构造”。对于“表皮构造”的实质,长期以来看法不一。有人认为是地层间角度不整合或超覆现象;有的则说是断裂变动。持断裂变动观点的人,对于断裂的性质、动力作用方式、动力来源等问题的看 A striking geological phenomenon is spreading in late-Paleozoic coal-producing areas in western Henan (Figure 1). The newer rock series in the geologic age covered the coal-bearing rocks in an abnormal contact relationship. The structural features of the upper and lower contact surfaces are quite different, forming a “double-layer” structure of the coal-bearing basin profile. This phenomenon is now commonly known as the “epidermal structure.” For a long time, the essence of “epidermal structure” has been mixed. Some people think that the angle between the strata does not integrate or overreach; others say that the fracture changes. Persons who hold the viewpoint of fracture variation can not understand the nature of fracture, the mode of dynamic action, the source of power and other issues