本文讨论冲断层(thrust)和推复体(nappe)的定义,并分析以往定义这些构造所用的准则。“冲断层”定义为一种制图规模的收缩断层(contraction fault)。“冲断层推复体”(thrust nappe)是指沿冲断层位移的外来构造岩席。本文也给出下列定义:褶皱推复体(fold nappe);伸展断层(extension fault);收缩断层;铲形(或犁形,下同)正断层 This article discusses the definition of thrust and nappe, and analyzes the criteria used to define these structures in the past. “Thrush” is defined as a drawing-scale contraction fault. “Thrust nappe” refers to exotic structural mats displaced along thrusts. This paper also gives the following definitions: fold nappe; extension fault; contraction fault; spatulate (or plowed, same below) normal fault