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湖南安化县某锑矿区Ⅰ组脉中存在着一个200余米直径,延深600多米的柱状矿化富集段。富集段出现在前寒武系板溪群五强溪组浅变质岩系中,位于雪峰隆起带北缘。区域马家溪、岳溪压性断裂与矿区中的一对扭性断裂及锑丰度高于地壳丰度93至186倍的五强溪组上段,正好构成了导、储、源的成矿有利组合。矿床属热动力构造改造层控型辉锑矿床。
There is a columnar mineralization enrichment section with a diameter of 200 meters and a depth of more than 600 meters in Group Ⅰ veins of an antimony mine in Anhua County, Hunan Province. The enrichment section occurs in the Precambrian Banxi Group Wuqiangxi Formation of the shallow metamorphic rocks, located in the northern edge of Xuefeng uplift. The Majia River, Yuexi pressure fractures and a pair of twisted fractures and the upper Wuqiangxi Formation whose antimony abundance is 93 to 186 times higher than that of the crust, formed the ore-forming of ore-storage, ore-source Favorable combination. The deposit belongs to the thermo-dynamic tectonic transformation-type stibnite deposit.