【摘要】 鉴于焦家金矿 3#矿脉矿体多为规模不等、产状变化大、形态复杂、尖灭再现、矿化极不均匀和成矿后构造错失复杂等特点 ,极难运用规范工程控制 ,因此对采场采准工程实施基础上进行矿体的二次圈定十分必要 ,也是必须的地质管理工作 .为此 ,本文在论述二次圈定必要步骤基础上 ,总结了所取得包括降低损失贫化率、深化地质认识在内的良好效果更多还原

【Abstract】 Due to the character of the No.3 vein in Jiaojia gold mine with varying scale, complex space,taping out and reproducing, ununiform mineralization and complicated structure, it is difficult to normally determine the boundary of orebody, so it is necessary to secondarily delineate the orebody on the basis of the finished development work in the stope.更多还原