甘肃北山音凹峡地区水系沉积物测量地球化学特征及找矿靶区优选

陈海云,龚振中,杨镇熙,任长旭,周兆明

Geochemical Characteristics of Stream Sediment Survey and Prospecting Target Selection in the Yinwaxia Area，Beishan，Gansu Province

Haiyun CHEN,Zhenzhong GONG,Zhenxi YANG,Changxu REN,Zhaoming ZHOU

表3 元素异常及下限统计结果

Table 3 Statistical results of element anomaly and thresholds

异常元素 异常数量/个 异常下限 异常元素 异常数量/个 异常下限 Ag 87 61.10 Mo 94 1.56 As 70 9.38 Ni 84 23.75 Au 145 5.07 Pb 61 36.33 Ba 69 726.07 Sb 103 0.88 Bi 80 0.61 Sn 86 1.67 Co 61 12.83 W 103 2.18 Cr 96 43.24 Zn 48 82.99 Cu 68 24.33 Hg 134 88.94