岩群
- 网络Group-complex;group complex;Olgas
岩群-
涑水岩群残存于西姚片麻岩之中，是由斜长角闪岩、磁铁石英岩、黑云变粒岩、钙质片岩和白云质大理岩组成。
Shushui rock group remains in Xiyao gneiss , and made up of amphibolite , magnetite quartzite , biotite granulite , calc-schist and dolomitic marble .
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构造岩层是其中主要类别，其单位等级体制可划分为岩群、岩组与岩段。
And the main kind of them is the structural bed , which consists of litho group , litho formation and litho member in the classification system .