关键词: 土壤地球化学, 铅锌矿, 分形, 银山岭, 广西

Abstract:

By promoting simple geological survey and geochemical measurement of soil profile in a scale of 1∶10,000 in Yinshanling, Guigang, Guangxi, we summarized the stratum, lithology, structure and wallrock alteration exposed in Yinshanling. On above basis, we proceeded a research for soil geochemistry, and got the following understanding: (1) The statistical analysis of trace element parameters shows that the content of Pb, Zn, Ag element is relatively higher, the coefficient of variation is much bigger, and easily downward enrich to form substantial geochemical anomaly; (2) Combinatorial analysis of elements, element distribution patterns and element fractal characteristics show that the Pb, Zn, Ag represent secondary enrichment combination of the main oreforming elements. And their distribution range is wide, dispersion is large so that they can be used as the main prospecting indicator elements; (3)Analysing integrating geological and geochemical data information, we discovered three geochemical anomaly segments in the work area, then interpreted and evaluated each soil geochemical anomaly, finally delimitated the prospecting target areas and put forward some new suggestions for work.

Key words: soil geochemistry, leadzinc deposit, fractal, Yinshanling;Guangxi