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本文通过对冲断层前锋构造样式变化的研究,来确定它们代表的是典型逆冲岩席发展的不同阶段,还是代表造山应力的衰减的独特事件.冲断层前锋可分为“隐伏型”和“出露型”.前者底板冲断层在地下即消失,后者则出露于同构造期地面.隐伏冲断层前锋又可再分为两类:第一类逆冲断层前锋终止于宽阔的低应变带;第二类终止于高应变带.出露型冲断层前锋可以显示较大的水平位移(强烈出露),也可以只有约1km的有限位移(轻微出露).断尖固着的冲断层前锋表现出高应变和无序逆冲作用.不同类型的冲断层前锋由缓和的断尖线背斜和走向滑动带相连.多数逆冲断层前锋类型均反映了典型逆冲岩席的不同发育阶段,但第一类为特殊的冲断层前锋,属非典型演化.
By studying the changes of tectonic styles of heiferous fault frontiers, the paper determines whether they represent different stages of the development of a typical thrust mat or a unique event that represents the attenuation of orogenic stress, and the thrust of the thrust reservoirs can be divided into “latent” and The former thrust floor disappears underground, while the latter is exposed in the same tectonic period ground.The hidden thrust front can be further divided into two categories: the first type of thrust strike at the end of the broad The second category terminates in a high strain zone. The exposed thrust strike can show large horizontal displacement (intense exposure) or limited displacement (slight exposure) of only about 1 km. Of the thrust front showed high strain and disorderly thrusting.Different types of thrusts were connected by a gentle apical anticline and strike-slip belt.Most thrust types all reflect typical thrust beds Different stages of development, but the first is a special thrust front, is atypical evolution.