基于构造地球化学弱信息提取技术的金属矿产探测研究

朵德英, 刘秀峰, 李波

Metal mineral exploration based on tectono-geochemistry weak information extraction

DUO De-Ying, LIU Xiu-Feng, LI Bo

表4 样本中各元素背景值、异常下限及弱异常分带界限

Table 4 Background values, lower anomaly limits, and weak anomaly band boundaries of each element in the sample

元素 背景值/ (ng·mL-1) 异常下限/ (ng·mL-1) 弱异常分带界限/ (ng·mL-1) Cd 0.2 0.4 0.4~0.8 Pb 0.1 0.25 0.25~0.5 Sn 1.0 2.2 2.2~4.4 Au 0.3 0.7 0.7~1.4 As 0.5 1.2 1.2~2.4 Sb 0.03 0.07 0.07~0.14 U 0.02 0.05 0.05~0.1 Rb 0.12 0.26 0.26~0.52