Research Article
The Fe-Zn Isotopic Characteristics and Fractionation Models: Implications for the Genesis of the Zhaxikang Sb-Pb-Zn-Ag Deposit in Southern Tibet
Table 2
EPMA data for sulfides from the Zhaxikang deposit.
| | Sample number | As (%) | S (%) | Se (%) | Cu (%) | Co (%) | Zn (%) | Sb (%) | Ag (%) | Au (%) | Cd (%) | Bi (%) | Pb (%) | NiO (%) | FeO (%) | Total (%) | Mineral |
| | 9-3-1 | – | 33.165 | – | 0.133 | 0.009 | 59.095 | – | – | – | 0.171 | – | – | – | 6.985 | 99.558 | Sp | | 9-3-2 | – | 33.423 | – | 0.015 | 0.012 | 58.224 | – | 0.002 | – | 0.151 | – | – | – | 8.060 | 99.887 | Sp | | 9-3-3 | – | 33.262 | – | – | 0.015 | 57.114 | – | – | – | 0.159 | – | – | – | 9.405 | 99.955 | Sp | | 9-3-6 | 0.784 | 52.884 | – | 0.005 | 0.044 | – | – | – | 0.016 | – | – | 0.134 | – | 46.585 | 100.452 | Py | | 9-3-7 | 2.244 | 51.934 | – | 0.002 | 0.049 | – | – | – | 0.004 | – | – | 0.132 | – | 46.044 | 100.409 | Py | | 9-8-1 | 0.002 | 33.740 | – | 0.009 | 0.010 | 57.705 | – | 0.004 | – | 0.160 | – | 0.018 | 0.008 | 8.827 | 100.483 | Sp | | 9-8-2 | – | 33.649 | – | 0.011 | 0.005 | 59.584 | – | 0.005 | – | 0.150 | – | – | – | 7.112 | 100.516 | Sp | | 9-8-3 | – | 33.500 | – | 0.006 | 0.003 | 56.941 | – | – | – | 0.160 | – | – | 0.002 | 9.424 | 100.036 | Sp | | 9-8-5 | 0.009 | 34.064 | – | 0.089 | 0.004 | 57.475 | – | – | – | 0.151 | – | – | – | 8.901 | 100.693 | Sp | | 9-8-6 | 0.006 | 53.867 | – | 0.033 | 0.050 | 0.058 | – | 0.005 | 0.012 | – | – | 0.300 | 0.002 | 46.539 | 100.872 | Py | | 9-8-7 | 0.015 | 53.359 | – | 0.471 | 0.043 | 0.044 | – | – | – | – | – | 0.174 | – | 46.518 | 100.624 | Py | | ZXK-1-1 | – | 33.502 | – | 0.012 | 0.009 | 57.497 | – | – | – | 0.172 | – | – | – | 9.142 | 100.334 | Sp | | ZXK-1-2 | – | 33.428 | – | 0.036 | – | 60.190 | 0.002 | 0.002 | – | 0.201 | – | – | – | 5.810 | 99.669 | Sp | | ZXK-1-3(1) | 39.757 | 24.131 | – | 0.006 | 0.043 | 0.009 | – | – | 0.027 | – | – | 0.063 | 0.002 | 36.340 | 100.378 | Apy | | ZXK-1-3(2) | 2.435 | 51.666 | – | 0.018 | 0.067 | 0.185 | – | 0.007 | 0.013 | – | – | 0.113 | 0.004 | 45.877 | 100.385 | Py | | ZXK-1-3(3) | – | 33.337 | 0.002 | 0.014 | 0.012 | 58.623 | – | 0.015 | – | 0.147 | – | – | 0.003 | 7.747 | 99.900 | Sp | | ZXK-1-4 | 1.942 | 51.982 | 0.001 | 0.008 | 0.046 | 0.015 | – | – | 0.003 | – | – | 0.196 | – | 46.004 | 100.197 | Py | | ZXK-1-5 | 2.056 | 52.248 | – | 0.008 | 0.054 | – | – | – | 0.013 | – | – | 0.137 | – | 46.163 | 100.679 | Py | | ZXK-2-1 | – | 33.684 | – | 0.061 | 0.010 | 59.726 | – | – | – | 0.170 | – | – | 0.005 | 6.904 | 100.560 | Sp | | ZXK-2-2 | 39.643 | 23.789 | – | 0.002 | 0.050 | 0.008 | 0.196 | 0.006 | – | – | – | 0.081 | 0.098 | 36.245 | 100.118 | Apy | | ZXK-2-3 | – | 33.868 | – | 0.025 | 0.012 | 58.034 | – | 0.001 | – | 0.196 | – | – | 0.002 | 8.714 | 100.852 | Sp | | ZXK-2-4 | 39.444 | 24.229 | – | – | 0.041 | – | 0.173 | – | 0.026 | – | – | 0.061 | – | 36.424 | 100.398 | Apy | | ZXK-2-5 | 2.417 | 51.755 | – | – | 0.045 | 0.027 | – | – | – | – | – | 0.131 | – | 46.227 | 100.602 | Py | | ZXK-2-6 | 0.031 | 53.630 | – | 0.107 | 0.047 | – | – | – | 0.009 | – | – | 0.168 | – | 46.654 | 100.646 | Py |
|
|
Notes. (1) Py = pyrite, Sp = sphalerite, and Apy = arsenopyrite; (2) for the sampling points, please see Figure 5. |
