【摘要】 １∶５ 万吉南板石沟幅地质填图，查明前寒武纪变质岩系内发育一套韧变序列：前阜平旋回中构相；阜平旋回第一幕浅—中构相；阜平旋回第二幕中—浅构相；吕梁旋回早期浅构相；吕梁旋回晚期表—浅构相。各期面状构造特征性韧变标志，反映出近东西向龙岗古陆核是由韧性—脆性、由活动向稳定演化的一套构造堆积体组成的。更多还原

【Abstract】 The 1∶50 000 mapping revealed a set of ductile deformation belts in the metamorphic rocks in Banshigou area. Five deformation episodes could be identified in the area:Pre Fuping episode at intermediate depth,episode 1 of Fuping cycle at shallow to intermediate depth,episode 2 of Fuping cycle at intermediate to shallow depth,early Lüliang cycle at shallow depth,late Lüliang cycle at surficial to shallow depth.The foliations are characteristic of ductile deformation,suggesting that the nearly E W striking Longgang massif consists of tectonic accumulation corresponding transfer from ductile to brittle deformation and from mobile to stable setting.更多还原