利用因子分析和分形分析识别内蒙古黑鹰山地区矿致地球化学异常

龚晶晶, 杨剑洲, 马生明, 苏磊

Recognition of ore-induced geochemical anomaly by combined factor and fractal analysis in Heiyingshan, Inner Mongolia

Jing-Jing GONG, Jian-Zhou YANG, Sheng-Ming MA, Lei SU

图7 图6中b区的地球化学剖析 a—地质图;b—Ag点位符号异常图;c—Mo点位符号异常图;d—Cu点位符号异常图;e—Bi点位符号异常图;f—F2因子得分图;异常下限(A)以全工作区数据剔除离群值后取信度系数1.6确定;Ag、Mo、Cu、Bi 4级色阶分别代表背景(<A)、异常外带(A~2A)、异常中带(2A~4A)、异常内带(>4A)

Fig.7 Geochemical analysis of area b in Fig.6 a—geology map; b—samples symbol anomaly map of Ag; c—samples symbol anomaly map of Mo; d—samples symbol anomaly map of Cu; e—samples symbol anomaly map of Bi; f—map of F2 socre;the lower limit of the anomaly is determined by taking the outlier value of the whole work area and taking the confidence coefficient of 1.6; the 4 levels of Ag, Mo, Cu, and Bi represent the background, anomalous outer band, anomalous middle band, and anomalous inner band