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。
The mineral rock - silica rock mostly composes of three kinds of silica qualities , and the first structure jasper silica rock , the second icrocrystal quartzite , the third the quartz grain clast . cement is carbonate , contain a little amount carbonate loach . silica rock , commonly assume edge angle or hypo - edge angle 区内的含矿岩石?硅质岩主要由三种硅质成分构成，第一种为显脱玻?霏细结构的碧玉质硅质岩，第二种为微晶石英岩，第三种为石英颗粒内碎屑。
The lower paleozoic strata in the south kunlun massif are kulafuhe group of cambbrian - ordovician . they consists of metamorphic detrital rocks , limestone , magnetite - bearing basalt , quartzite ( meta - silicalite ) , which suggests that they might form at active continent margin . the geochemical characteristics of volcanic and detrital rocks do indicate that they might form at an active marginal environment such as island arc etc . associated with the qimanyuter ophiolite suit , there are lots of early paleozoic granitic plutons 在昆南地块上的早古生代地层为寒武?奥陶系库拉甫河岩群，由变碎屑岩、灰岩、含磁铁矿玄武岩、石英岩(变硅质岩)等组成，显示其比昆北地块有较大的活动性，火山岩和碎屑岩的岩石地球化学特征也反映为岛弧及活动边缘环境。
