湘东北万古金矿床不同期次黄铁矿微量元素特征及其对金成矿机制的启示

万泰安,许德如,马文,张胜伟,王国建,卞玉冰,李博

Trace Element Characteristics of Different Chronology Pyrite in Wangu Gold Deposit，Northeast Hunan and Its Implication to Gold Mineralization Mechanism

Tai’an WAN,Deru XU,Wen MA,Shengwei ZHANG,Guojian WANG,Yubing BIAN,Bo LI

表2 万古金矿床毒砂LA-ICP-MS微量元素特征

Table 2 Characteristics of trace elements of arsenopyrite in the Wangu gold deposit by LA-ICP-MS（×10-6）

测点号 S Mn Fe Co Ni Cu Zn As Se Mo Ag Cd In Sn Sb Te Au Tl Pb Bi Co/Ni G-1-3 342 782 1.20 342 016.81 65.51 207.24 3.27 - 771 414 28.41 0.164 0.27 0.84 0.566 0.38 472 6.35 8.42 0.013 21.56 5.33 0.316 G-1-6 311 201 1.49 342 016.84 36.17 110.50 6.00 - 767 418 36.36 0.253 0.34 0.58 0.518 0.52 123 2.82 74.99 0.019 1.63 0.33 0.327 G-1-7 232 453 1.41 342 016.81 1.43 27.96 3.85 - 791 261 33.15 0.253 0.30 0.48 0.488 0.40 3 010 3.99 8.42 0.019 12.94 8.02 0.051 G-1-9 370 857 1.59 342 016.84 3.10 35.22 11.30 - 815 334 49.33 0.209 0.64 0.41 0.485 0.48 466 3.76 27.83 0.039 19.77 5.81 0.088 G-1-10 317 107 1.55 342 016.88 2.62 23.52 6.64 - 776 218 34.84 0.260 0.35 0.56 0.572 1.56 579 2.78 13.45 0.014 19.74 4.33 0.111 G-1-13 343 646 6.26 342 016.88 28.79 32.16 11.00 - 738 722 68.08 0.720 0.36 0.47 0.507 0.49 207 2.81 96.84 0.033 25.76 4.68 0.895 G-1-14 397 823 1.54 342 016.84 1.54 23.17 4.22 - 806 938 45.73 0.250 0.39 0.51 0.662 0.46 114 3.03 47.49 0.030 11.92 2.03 0.066 G-1-15 289 735 2.03 342 016.84 93.37 178.65 4.57 - 699 271 35.46 0.215 0.35 0.47 0.570 0.52 152 3.80 88.38 0.018 7.32 2.09 0.523 G-4-6 338 040 2.44 342 016.84 434.85 687.52 6.30 - 727 245 47.10 0.350 0.50 0.82 0.581 0.73 747 4.65 28.37 0.029 28.53 5.07 0.632 G-4-7 255 586 1.67 342 016.84 49.41 176.78 10.40 - 645 212 33.83 0.300 0.37 0.50 0.440 0.47 191 2.98 62.54 0.015 17.11 3.67 0.279