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过去,我队在开展各类金属矿床勘探时,无论矿化均匀程度如何,都用刻槽法取样.经过一段实践,虽然也体会到刻槽取样法有很多优点,但操作技术比较复杂,成本较高,粉尘浓度较大,还要做规格试验.而且往往因为工效较低,常常跟不上工程进度的需要.1966年以来,我队在勘探石英脉型金矿时,通过试验比较了刻槽法与刻线法,感到刻线法的工效高、成本低、粉尘浓度小、操作简便、质量也符合要求.得到有关部门同意后,我们立即在石英脉型金矿勘探中正式改用线法取样,加快了工作进度.经过试验以后,在矽卡岩型钼矿、热液型铅锌
In the past, when carrying out exploration of various types of metal deposits, our team took groove sampling method regardless of the degree of mineralization uniformity.After a period of practice, though there are many advantages of groove sampling method, the operation technique is rather complex and the cost Higher, higher dust concentration, but also to do the specifications test.And often because of low efficiency, often can not keep up with the progress of the project needs .1966, my team in the exploration of quartz vein type gold mine, compared by the test engraved Groove method and the engraving method, feel the engraving method of high efficiency, low cost, low dust concentration, easy operation, the quality also meets the requirements.With the consent of the relevant departments, we immediately formally converted quartz vein type gold exploration line Sampling method to speed up the work progress.After the test, skarn molybdenum ore, hydrothermal lead and zinc