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在冀东迁安和滦县一带,前震旦变质岩系有广泛的分布。出露于迁安地带的称为迁安含矿岩系,变质程度达麻粒岩相,其中在水厂、宫店子、孟家沟等地赋存有大中型铁硅质条带状贫铁矿。分布于滦县以南一带的称滦县含矿岩系,为绿帘角闪岩相,其中赋存有司家营、马城等大型铁硅质条带状贫铁矿。在迁安和滦县两个含矿岩系之间的地带,也有大片太古代变质岩系分布。在张庄、安各庄和朱庄等地含矿岩系中赋存有较小的铁硅质铁矿。
In the east of Qian’an and Luanxian, the former Sinian metamorphic rocks are widely distributed. Exposed to the Qian’an zone known as the Qian’an ore-bearing rock series, degree of metamorphic granulite facies, which in the waterworks, Gongdian, Mengjiagou and other places there are large and medium-sized iron siliceous banded lean iron ore. Luanxian distributed in the vicinity of the area called Luanxian ore-bearing rocks, green curtain amphibolite facies, in which there are Division Siying, Ma City and other large iron siliceous banded iron ore. In Qian’an and Luanxian two ore-bearing strata between the area, there are also large Archean metamorphic rock distribution. In Zhangzhuang, An Zhuang and Zhu Zhuang and other ore-bearing rock strata occur in the smaller iron-siliceous iron ore.