万古金矿中碳质物的成因及其与金成矿的关系

张胜伟,邓腾,许德如,周岳强,董国军,李增华,马文,许可,海颜

Genesis of Carbonaceous Material in the Wangu Gold Deposit and Its Relationship with Gold Mineralization

Shengwei ZHANG,Teng DENG,Deru XU,Yueqiang ZHOU,Guojun DONG,Zenghua LI,Wen MA,Ke XU,Yan HAI

表2 不同类型CM中黄铁矿的LA-ICP-MS微量元素分析结果

Table 2 LA-ICP-MS trace element analysis results of pyrite in different types of CM（×10-6）

CM类型 编号 矿物 Au As Se Co Ni Cu Sb Te Pb Bi Co/Ni CM2 2-1 Py 31.56 48386.85 - 75.86 165.25 117.50 63.88 - 67.76 0.49 0.46 2-2 Py 27.35 36730.26 1.03 162.38 927.59 44.09 86.25 - 253.47 1.85 0.18 2-3 Py 40.24 38000.63 - 253.36 601.61 30.71 61.51 - 60.03 0.55 0.42 2-4 Py 34.22 35014.36 0.87 10.00 79.10 63.58 82.53 - 36.98 0.10 0.13 2-5 Py 9.40 29676.76 0.78 3.04 35.25 11.32 35.41 - 38.56 0.09 0.09 CM3 3-1 Py 0.83 1846.18 33.78 3013.17 482.07 241.14 519.90 17.87 1381.06 23.95 6.25 3-2 Py 0.95 4223.69 46.25 786.32 1186.64 194.92 379.25 10.45 1278.54 11.96 0.66 3-3 Py 1.16 2061.73 38.10 517.69 640.46 173.19 327.43 9.53 973.73 12.46 0.81 3-4 Py 0.52 112.86 21.89 18.67 23.24 256.41 287.11 - 673.51 5.47 0.80 3-5 Py 0.56 141.15 20.95 158.32 129.73 206.05 302.97 1.32 982.05 5.89 1.22 检测限 0.03 2.07 0.68 0.65 0.37 0.35 0.24 0.14 0.002 0.02