湘东北正冲金矿床成因:年代学和硫同位素制约
|
吴华浩,邵拥军,刘清泉,王智琳,张毓策,袁梓焜
|
Genesis of the Zhengchong Gold Deposit in Northeast Hunan—Constraints from Geochronology and In-situ Sulfur Isotope
|
Huahao WU,Yongjun SHAO,Qingquan LIU,Zhilin WANG,Yuce ZHANG,Zikun YUAN
|
|
表4 正冲金矿床绢云母原位Rb-Sr同位素测试结果
|
Table 4 In-situ Rb-Sr isotopes test results of sericite in Zhengchong gold deposit
|
|
成矿阶段 | 87Rb/86Sr | ±1s | 87Sr/86Sr | ±1s |
---|
石英—黄铁矿—自然金阶段 | 16.458 | 0.915 | 0.814 | 0.005 | 17.095 | 0.253 | 0.817 | 0.006 | 17.526 | 0.756 | 0.811 | 0.005 | 19.577 | 1.376 | 0.816 | 0.007 | 23.609 | 0.843 | 0.825 | 0.007 | 19.725 | 0.416 | 0.820 | 0.005 | 21.880 | 0.653 | 0.830 | 0.008 | 31.139 | 0.786 | 0.845 | 0.009 | 23.210 | 0.671 | 0.813 | 0.008 | 27.085 | 0.754 | 0.832 | 0.013 | 31.905 | 1.293 | 0.851 | 0.010 | 24.594 | 1.552 | 0.844 | 0.016 | 25.624 | 2.283 | 0.850 | 0.008 | 18.547 | 0.425 | 0.803 | 0.006 | 20.072 | 0.556 | 0.817 | 0.006 | 19.858 | 0.793 | 0.823 | 0.009 | 44.992 | 1.413 | 0.891 | 0.012 | 45.778 | 2.375 | 0.915 | 0.017 | 16.835 | 0.740 | 0.812 | 0.005 | 31.780 | 0.728 | 0.861 | 0.010 | 14.959 | 0.964 | 0.813 | 0.012 | 70.953 | 0.140 | 0.976 | 0.004 | 36.266 | 1.035 | 0.890 | 0.018 | 26.395 | 0.688 | 0.854 | 0.007 | 31.472 | 0.761 | 0.850 | 0.008 | 石英—黄铁矿—毒砂多金属硫化物阶段 | 33.424 | 0.964 | 0.883 | 0.010 | 31.254 | 0.981 | 0.876 | 0.007 | 28.207 | 1.655 | 0.858 | 0.008 | 33.539 | 0.823 | 0.881 | 0.010 | 36.499 | 0.997 | 0.883 | 0.009 | 70.494 | 2.591 | 0.996 | 0.013 | 67.204 | 2.528 | 0.967 | 0.013 | 81.845 | 4.580 | 1.028 | 0.022 | 33.016 | 1.246 | 0.848 | 0.013 | 66.180 | 2.815 | 0.974 | 0.020 | 59.609 | 1.668 | 0.943 | 0.020 | 97.567 | 0.190 | 1.070 | 0.006 |
|
|
|