河南嵩县苍沟钼矿床地质特征与深部找矿方向

Geological Characteristics and Prospecting Direction in the Depth of Canggou Mo-Pb Deposit in Songxian County,Henan Province

矿区地表发现4条钼铅矿脉,1条铅矿脉,钻探施工在矿区深部发现2层钼铅矿体密集区,单孔见矿达10层,共发现盲矿体30条,深部钻孔验证了矿区600 m以下仍然存在石英脉型钼铅矿体。勘查线剖面对比发现矿区石英脉型钼铅矿体整体倾向NEE向,倾角3°~30°。矿区钼矿与铅矿共伴生,矿床成因为中低温热液成矿,矿区钼铅矿成矿作用可能发生于成矿热液活动的后期,成矿热液温度降低阶段。矿区深部可能存在巨大的导矿构造,矿区深部NEE部是矿区最为有利的找矿地带。深部盲矿体的圈连以及如何发现厚大钼铅矿体是今后重点找矿任务。

The four Mo-Pb veins and one Pb vein were discovered on the surface of the Canggou Mo-Pb deposit area in Henan Province.The two layers concentrated distribution area of Mo-Pb orebodieswere found in the deepth of the deposit areathroughverificationbydrilling,and the total of 30 layerblind orebodies discovered,with 10 layer orebodies found in a single hole.Deep drilling confirmed that quartz vein type Mo-Pb orebodies still exist below 600 m in the mining area.Comparison of exploration line profiles reveals that the quartz vein type Mo-Pb orebody in the mining area is generally inclined towards the NEE direction,with an inclination angle of 3°to 30°.The molybdenum and lead deposits in the mining area are coexisting,and the ore genesis belongs the medium-low temperature hydrothermal type deposit,the mineralization of molybdenum and lead deposits in the mining area may occur in the later stage of hydrothermal activity,where the temperature of the mineralization hydrothermal decreases.There may be a huge ore guiding structures in the deepth of the mining area,and the NEE part in the deepth of the mining area is the most favorable exploration zone.The ncirclementof deep blind orebodies and how to discover thick and large Mo-Pb orebodies will be the key exploration tasks in the future.Four Mo-Pb veins and one Pb vein were discovered on the surface of Canggou Mo-Pb deposit area in Henan province.Two layers concentrated distribution area of Mo-Pb orebodies were found in the deepth of the deposit area through verification by drilling,and the total of 30 layerblind orebodies were discovered,with 10 layer orebodies found in a single hole.Deep drilling confirmed that quartz vein type Mo-Pb orebodies still existed below 600 m in the mining area.Comparison of exploration line profiles reveals that the quartz vein type Mo-Pb orebody in the mining area is generally inclined towards the NEE direction,with an inclination angle of 3°to 30°.The molybdenum and lead deposits in the mining area are coexisting,andthe ore genesis belongs the medium-low temperature hydrothermal type deposit.The mineralization of molybdenum and lead deposits in the mining area may occur in the later stage of hydrothermal activity,where the temperature of the mineralization hydrothermal decreases.There may be a huge ore guiding structures in the deepth of the mining area,and the NEE part in the deepth of the mining area is the most favorable exploration zone.The ncirclement of deep blind orebodies and how to discover thick and large Mo-Pb orebodies will be the key exploration tasks in the future.