湖南宁远马山岭矿区土壤地球化学特征及其找矿指示意义

Soil Geochemical Characteristics of Mashanling Ore District and Its Indication Significance of Prospection in Ningyuan, Hunan Province

摘要: 在马山岭矿区，按照土壤化学测量规范取土壤2262个，经分析测试，用SPSS软件对取得的2262个数据进行处理，发现Zn、Pb和Sb元素浓度克拉克值均大于3，变异系数均大于0.5，Zn和Pb的最高值分别为9013.89 × 10⁻⁶，6225.69 × 10⁻⁶，Pb与Zn元素有较强的聚合性，正相关性，其相关系数为0.86。此外，通过对单元素异常及综合异常的圈定，发现ZH-1、ZH-2、ZH-3，和ZH-4等4个综合异常带具有良好的找矿前景，为矿区下一步工作的重点找矿靶区。

Abstract: In Mashanling ore district, according to the criterion of soil geochemical measurement, 2262 soil samples were taken. After processing 2262 data with SPSS statistical software, it was found that the concentration Clarke value of such elements as Zn, Pb and Sb was more than 3, their variation coefficient was also more than 0.5, the highest content of Zn and Pb was 9013.89 × 10⁻⁶ and 6225.69×10⁻⁶. Pb and Zn have stronger polymerization and positive correlation with 0.86 of their coefficient. According to the evaluated single element anomaly and synthetical distribution, it is conduced that such four synthetical anomaly zones as ZH-1, ZH-2, ZH-3 and ZH-4 are the most po-tential mineralization districts and the key prospecting target areas.