It is a kind of fault rock called fault gouge. actually, fault rock is a collective term and can be divided into many different types in reference to their textural characteristics.

• 这是一种叫断层泥的断层岩。实际上断层岩是这种岩石的一个集合名称，根据断层岩的结构特征，可以划分出许多不同类型来。