| 1. | According to representative section , tectono - stratigraphic unite , rock association character , beidahe group is divided a , b , c petrofabrics . the lithology of a petrofabric is amphibolite , gneiss interlated with schist , accidental marble . the lithology of b petrofabric is schist interlated with marble , quartzite 根据代表性剖面的研究,在构造岩石地层单位序列划分变质地层的原则指导下,按变质岩石组合特征划分了a 、 b 、 c三个岩组。 |