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湘南粤北地区开展金属量测量工作已经有几年了,然而对取样深度问题,还没有得出一个比较一致的看法,生产工作中也没有明确的规定。1957年以来物探研究所曾在该地区内的几个热液型和矽卡岩型铅锌矿区,对土壤层垂直剖面上铅、锌、(铜)的分布情况作了初步观察(图1至图8)。据此,就淋滤作用的影响,土壤层垂直刮面上金属含量的变化以及腐植质的影响三方面,对选择合适的取样深度问题提
It has been several years since the southern part of southern Hunan began to carry out the measurement of metal content. However, there has not been a more unified view on the sampling depth and there is no clear stipulation in the production work. Since 1957, Geophysical Institute has conducted preliminary observations on the distribution of lead, zinc and copper in the vertical profiles of soil layers in several hydrothermal and skarn-type lead-zinc mines in the area (Figures 1 to Figure 8). Based on the above, three aspects of the influence of leaching, the change of metal content on vertical scraping surface of soil layer and the influence of humic substance are discussed.