河南省桐柏县顾老庄萤石矿地质特征及成因浅析

Geological features and genesis of Gulaozhuang fluorite deposit in Tongbai County of Henan province

矿区位于华北地台与秦岭褶皱带的接合部位,属著名的豫南萤石矿成矿带。矿区北西向、北西西向、北东向构造发育,北东向断裂是本区萤石矿的赋矿构造。通过工程揭露,区内圈出K1、K2、K3三个萤石矿体,矿体形态呈脉状、透镜状。初步研究认为该矿床属低温热液裂隙充填型萤石矿床。燕山晚期花岗岩体、发育于碳酸盐岩中的北东向构造破碎带是重要的找矿标志。

The mine is located in the junction of North China Craton and Qinling Mountains fold belt, belonging to the famous South Henan fluorite metallogenic belt. The N-W, N-WW, N-E faulted structures were developed, and the northeast faults are the main ore controlling structure zone. Through the project reveal, K1、K2、K3 fluorite ore body were delineated, and the ore body shape is vein and lens. The preliminary research showed that the Gulaozhuang deposit was a hypothermia epithermal crackfilling type deposit. Granite body and the north east structure developed in the marble were important symbols to find such deposit.