河南嵩县山金北翼金矿体地质特征及盲矿找矿标志

Geological Characteristics and Blind Prospecting Criteria of Shanjinbei Wing Gold Deposit in Songxian County, Henan Province

摘要: 金矿体赋存于的M1构造破碎带中，并严格受构造破碎带控制，呈脉状产出。带内岩性主要是构造角砾岩。北翼控矿构造在空间上呈舒缓波状，工业矿体多呈透镜状分布于构造拐弯变化处，连续性差。矿化以硅化、黄铁矿化为主，局部钾化带破碎发育。穿插有黑色热液胶结物的细脉状及碎裂状黄铁矿的地段矿化较好；钾化强烈、黄铁矿晶形较完整的地段一般构不成工业脉体。在进行探矿工程布置时，采取坑、钻探相结合的手段，在进行深部探矿工程布置时，要采取坑、钻相结合的探矿手段，依据穿脉工程揭露的构造产状和矿物组分的变化情况，圈定有利的成矿靶区进行钻探控制，将有的放矢的探获零散盲矿脉，提高探矿效率，节约探矿投资。

Abstract: The gold ore bodies in the mining area are located in the M1 structural alteration zone, which are strictly controlled by the structural fracture zone and are produced in the veins. The lithology is mainly structural breccias, and the mineralization is mainly siliconized and pyrite. Potassium bands are localized development. The ore has a patchy structure and a massive structure. The phenocryst is potash feldspar. The north limbs of the ore-controlling structure are a soothing wavy in the space, while the industrial ore body is mostly distributed in the structure where the direction turns and the dip angle changes. Most of the ore-controlling structures are lenticular and have poor continuity. The types of alteration are potassium, siliconized, and pyrite mineralization, and interspersed with black hydrothermal cement veins, and the pyrite is mostly fractured. The ore with strong potassium and pyrite which has complete crystalline form cannot form industrial orebody. Decorating in the prospecting engineering, resorting to the pit, and the combination of drilling in deep prospecting engineering layout, taking pit, combining drilling prospecting method, on the basis of wear pulse engineering that revealed the structure of the occurrence and the change of mineral component, delineating favorable metallogenic target drilling control, will target agents scattered blind ore body, improve the efficiency of prospecting and save exploration investment.