底辟构造是背斜或穹窿中活动的核部岩层冲破上覆地层所形成的一种构造。在同心褶皱作用过程中,随着褶皱的弯曲度越来越大,核部岩层占据的空间就越来越小。如果核部岩层是强塑性的,那么它们就会向上施加一种压力,冲破顶盖而挤出。底辟构造还可 The structure of diapirs is a kind of structure formed by the active core of rock in the anticline or dome breaking through the overburden. During the process of concentric folds, the space occupied by the core rock layers becomes smaller and smaller as the curvature of the folds increases. If the core rock formations are strongly plastic, then they will exert a pressure upward, breaking through the roof and extrusion. Diapir structure can be