豫西嵩县鱼池岭斑岩型钼矿床的开采技术条件分析

鱼池岭超大型钼矿床主要工业矿体赋存于晚白垩世合峪花岗岩基中,其主要岩石为二长花岗岩和隐爆角砾岩。矿床充水主要为构造裂隙水,且矿坑涌水量小,不足以对矿床开采构成威胁。工程地质岩组以二长花岗岩和隐爆角砾岩为主,岩矿石在地表基本未风化。岩矿石为致密块状,构造裂隙不发育,充水较弱;岩矿石力学强度高、稳固性好,属坚硬岩类,工程地质复杂程度为简单-中等型。矿区地壳活动性差,地震不明显;地表水基本无污染,开发环境良好。矿床地处分水岭地带,地下水补给条件差,岩矿石稳固性好且风化弱,无软弱夹层。通过分析鱼池岭超大型钼矿床的主要开采技术条件,认为其有利于矿山开发。

Analysis of Technical Conditions in Mining of Yuchiling Porphyry Molybdenum Deposit

Mining Technical condition is necessary for mineral development.Most of the industrial ore bodies of Yuchiling super large molybdenum deposit are hosted in the late Cretaceous in Heyu multistage granite batholith,and the main rocks are monozonitic granite and crypto explosive breccia agglomerate.For the water inflow of the deposit is quite small,it does not pose a threat for mining;Engineering geological petrofabric mainly are monzonitic granite and breccia agglomerate,mineral rock in the earth's sur face are basically unweathered.Because of the massiveness of the ore rock,there have no structural fissure,and the water filling is weak in the deposit;the ore rock contains a high mechanical strength and stability,which belongs to the hard rocks,so the type of engineering geological complexity happens to simple-medium;Mineral development environment:weak crustal activity,no obvious earthquake.The surface water is basically unpolluted,and the exploration environment is quite good.Mining technical conditions:ore deposit is located in the watershed area,with a poor groundwater recharge,and a good stability and weak weathered of the ore rocks,with no weak interlayer,the main technical condition is safe for the whole mining work.