Nitude, Cu and Sn by two orders of magnitude, and Bi
Nitude, Cu and Sn by two orders of magnitude, and Bi by four orders of magnitude compared with the content of these elements in samples from other zones. At the very same time, the As concentration is not high in comparison to its anomalous values (1030 ppm) in the gold-pyrite-quartz association from the same zone. The aforementioned distribution of components is consistent with mineralogical capabilities: As-bearing pyrite in a single association and also the presence of many Bi-rich and Sn-bearing sulfosalts integrated in chalcopyrite in yet another.Table 6. Concentration of ore and chalcogenic elements in rocks of diverse zones from the Baranyevskoe deposit, ppm. Zone Rusty Central Central Hanging Northern Northern Southern Southern Southern Southern Southern Sample Bar-2-1 Bar-3 Bar-3-1 Bar-4 Bar-5-1 Bar-5-2 Bar-6-1 Bar-6-2 Bar-6-3 Bar-6-4 Bar-6-5 Au 3.77 6.78 6.47 43.70 135 110 0.22 0.16 0.36 0.16 0.68 Ag 0.98 1.96 two.31 14.ten 37.60 11.ten 1.34 0.43 1.34 0.31 0.29 Au/Ag three.85 three.46 two.80 three.10 three.59 9.91 0.16 0.37 0.27 0.52 2.35 Cu 20.40 88.90 69.00 24.30 80.90 3240 88.10 128 14.10 34.70 25.80 As 24 21 152 42 1030 68 11 38 19 54 39 Bi 0.50 0.21 0.14 0.40 0.27 7800 0.51 0.16 0.05 0.09 0.04 Pb 19.90 56.40 67.30 35.40 21.30 274 26.70 37.70 50.70 25.00 12.50 Sb 13.30 23.30 26.40 11.60 56.70 169 17.00 14.10 9.56 6.83 12.90 Se two two two two two 36 2 2 2 two two Sn 0.30 0.30 0.30 0.30 0.40 116 0.30 0.40 0.40 0.70 0.80 Zn 22 95 67 66 22 15 39 75 43 78 76 Te 0.49 0.22 0.12 0.28 0.10 21.6 0.89 0.41 0.65 0.93 0.4.five. Study on Fluid inclusions Fluid inclusions have been investigated only for the gold-sulfosalt-quartz association. Modest (150) principal gaseous and two-phase gas-liquid inclusions contained in quartz were identified. In the central parts of translucent crystals of quartz, you can find primarily groups of isometric two-phase inclusions (Figure 11a) whereas gas and two-phase fluid inclusions, around the development zones of quartz crystals, have an irregular shape (Figure 11b). Homogenization temperature of fluid inclusions varied IQP-0528 manufacturer within the selection of 22698 C (Figure 12a). The ice melting in cooled fluid inclusions appeared at temperatures from .8 to -0.2 C (Table 7). The salinity of fluid inclusions was estimated from 0.four to 1.2 wt. NaCl eq. Melting of Combretastatin A-1 manufacturer eutectic in frozen fluid inclusions occurred in the temperature selection of -49 to -25 C.Minerals 2021, 11,by eutectic melting at selection of -45 to -27 . The fluid inclusions within the quartz of this ore association contain NaCl and KCl. Low melting temperatures of eutectics from -49 to -27 Care characteristic of fluid inclusions in quartz of your gold-sulfosalt-quartz association with high-grade gold (Table 7). With regard towards the composition of fluids at the most current stage, 16 of 23 as well as NaCl, there could possibly be admixtures of CaCl2, MgCl2, FeCl2, FeCl3, K2CO3, which may perhaps reduced the melting point in the eutectic of fluid inclusions [24]. The composition of gas inclusions, apparently, is dominated by water vapor.16 ofMinerals 2021, 11, x FOR PEER REVIEWexplained by processes of mixing of hot magmatogenic fluids with cold fresh meteoric waters. The presence of principal gaseous and two-phase fluid inclusions around the development zones of quartz crystals indicates boiling on the ore-forming fluid. The calculated pressure of homogenization of fluid inclusions in quartz from the late stage of mineralization on the Baranyevskoe deposit varies from 2.6 to eight.3 MPa, and it truly is mostly close towards the pressures of ore formation inside the near-surface volcanic-hydrothermal mineral systems. I.
