四川马头金矿区土壤地球化学测量异常特征及找矿模型

李俊俊, 魏宇, 张庆松, 王维华, 柳维, 向亮

The anomalies determined using a soil geochemical survey and prospecting model of the Matou gold deposit in Sichuan Province

LI Jun-Jun, WEI Yu, ZHANG Qing-Song, WANG Wei-Hua, LIU Wei, XIANG Liang

表3 土壤异常下限值

Table 3 List of lower limits of soil anomalies

元素 样本数 算术平均值 标准离差 异常下限(外带) 异常下限(中带) 异常下限(内带) Cu 2087 70.0 31.8 133.7 267.4 534.8 Pb 1954 34.7 14.7 64.2 128.4 256.8 Zn 2064 115.4 52.8 221.1 442.2 884.4 As 1966 29.2 25.9 80.9 161.8 323.6 Sb 1846 3.80 2.77 9.34 18.68 37.36 Bi 2095 0.49 0.20 0.89 1.78 3.56 Hg 2037 177.99 88.14 354.28 708.56 1417.12 Sn 2134 2.6 0.6 3.9 7.8 15.6 Ag 2025 0.662 0.410 1.482 2.964 5.928 Au 1768 7.6 5.6 18.8 37.6 75.2