浅谈徽县洛坝铅锌矿床探矿工作思路

Discussion on Prospecting Ideas of Luoba Lead-Zinc Deposit in Hui County

洛坝铅锌矿床大地构造单元属三级构造单元-中秦岭陆源盆地,矿床属热水沉积-改造型铅锌矿床。中泥盆统安家岔组(D_(2)a)焦沟层(D_(2)a^(2))是矿区主要的赋矿层位。矿区内矿体数量多而分散,形态复杂。针对小矿体群较多的位置选择合理探矿工程及网度,用“坑钻结合”的探矿手段,不仅可以降低探矿成本、缩短了探矿周期、还提高了探矿效率,同时研究矿区地质特征、总结成矿规律,在盲区开展远景找矿工作,寻找新的找矿空间。

The Luoba lead-zinc deposit belongs to the third-order tectonic unit-Middle Qinling terrigenous basin,and the deposit belongs to the hot water sedimentation-reformed lead-zinc deposit.Jiaogou Formation(D_(2)a)of the Middle Devoni-an Anjiancha Formation(D_(2)a^(2))is the main ore-bearing horizon in the mining area.The orebodies in the mining area are nu-merous,scattered and complex in shape.In view of the location of more small orebodies,reasonable exploration engineering and mesh degree are selected,and the exploration means of"pit-drilling combination"can not only reduce the exploration cost,shorten the exploration cycle,but also improve the exploration efficiency.At the same time,the geological character-istics of the mining area are studied,the metallogenic regularity is summarized,and the prospective prospecting work is car-ried out in the blind area to find new prospecting space.