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一、用经济平衡品位对开采多年的老矿床重新评价我局属岭前矿矿床已有80多年的开采历史,全矿床23条矿体中9条出露地表矿体已采完放光,开采深度已达600余米,采出的工业矿量占总探明工业储量的百分之七十七;随着开采深度的增加负370米中段以下已有Ⅱ勘探类型过渡到Ⅲ、Ⅳ类型。另外一个矿山松树卯钼矿床,六九年开始露采,七二年转入井下开采,目前采出的工业矿量已占探明工业矿量的百分之九十六,前者说明岭前钼矿床基本进入晚期开
First, with the economic balance of quality mining for many years old ore re-evaluation I Bureau of Ling Qian ore deposit has been more than 80 years of mining history, 23 ore deposits in 23 ore bodies surface ore body has been taken after the completion of mining, mining The depth has reached more than 600 meters, and the industrial ore production is taken as 77% of the total proved industrial reserves. With the increase of mining depth, there has been the transition from Ⅱ exploration type to Ⅲ and Ⅳ below the middle of the negative 370 meters. The other mine, Mushu Molybdenum Deposit, began to be exposed in 69 and was converted to underground mining in 1972. At present, the amount of industrial ore mined has accounted for 96% of the total amount of proven industrial mines. The former shows that molybdenum The basic deposit into late open