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山东掖县焦家金矿自1980年1月正式投产以来,由于生产中段品位比原勘探结果有较大幅度的下降,不但使矿山的经济效益达不到设计要求,而且导致矿山生产处于被动局面.因此,我院会同焦家金矿,共同对焦家金矿的保有地质储量进行了核实.鉴于储量核实工作的需要,我们搜集了焦家金矿地质勘探以来的全部地质勘探、矿山基建、生产探矿的大量资料和数据.考虑到目前我国对焦家金矿这种热液蚀变花岗岩型金矿床的勘探工作仍属摸索过程,对如何能够控制和掌握这种金矿床的品位变化无先例可寻,所以本文想利用储量核实工作中了解的一些情况,对焦家金矿探采品位变化的原因谈几
Since the gold production of Jiaojia, in Yixian County, Shandong Province, was formally put into operation in January 1980, the grade of production in the middle of the project has dropped significantly compared with that of the original exploration results, which not only failed to meet the design requirements for the economic benefits of mines but also resulted in the passive production of mines. Therefore, Our institute together with Jiaojia Gold Mine verified jointly the retained geological reserves of Jiaojia Gold Mine.According to the needs of the verification of reserves, we collected a great deal of data and data of all geologic exploration, mining infrastructure and production of prospecting since the geological exploration of Jiaojia gold mine. Considering that the prospecting work of the Jiaojia gold deposit, which is a hydrothermal alteration granite type gold deposit, is still under exploration, there is no precedent for finding out how to control and master the grade changes of this gold deposit. Therefore, Some work to understand the situation, Jiaojia gold mining grade changes in the reasons for talking about a few