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在五台山地区，在原五台群南北金岗库组内分布着大小不等的超镁铁质岩块体，包括蛇纹岩，滑石片岩，透闪石片岩，辉石岩，变辉长岩，斜长角闪岩和簿层硅质岩。这些块体作为外来岩块产出在强变形的复理石型基质中，分别代表了阜平陆块和弧地质体及恒山陆块和弧地质体之间的海洋岩石圈的残余
In the Wutaishan area, ultra-mafic rocks of varying sizes are distributed in the Jinggutu Formation in the former Wutai Group, including serpentinite, talc schist, tremolite schist, pyroxenite, gabbro, Amphibolite and stratigraphic siliceous rocks. These blocks, as alien blocks, are produced in strongly deformable flysch matrixes and represent the remnants of the marine lithosphere between the Fuping block and the arc geological body and the Hengshan block and the arc geological body, respectively