Research Article
Genesis of the Bairendaba Ag-Zn-Pb Deposit, Southern Great Xing’an Range, NE China: A Fluid Inclusion and Stable Isotope Study
Table 1
Microthermometric data for fluid inclusions in hydrothermal quartz and fluorite, Bairendaba Ag-Zn-Pb deposit.
| | Stage | Host mineral | Inclusion Type | Tm(CO2) (°C) | Th(CO2) (°C) | Tm(clath) (°C) | Tm(ice) (°C) | Tm(NaCl) (°C) | Salinity (NaCl wt.%) | Th (°C) |
| | Stage 1 | Quartz | I (65) | −182.1 to −180.2 | −99.3 to −68.4 | 11.2–18.9 | NA | NA | NA | 267–395 | | III (39) | NA | NA | NA | −8.1 to −2.5 | NA | 4.2–11.8 | 242–351 | | IV (5) | NA | NA | NA | NA | 258–295 | 35.2–37.8 | 259–372 | | Stage | Quartz | II (62) | −79.5 to −59.6 | −52.1 to −2.8 | 7.9–16.8 | NA | NA | NA | 246–334 | | III (38) | NA | NA | NA | −6.8 to −1.6 | NA | 2.7–10.2 | 205–312 | | Stage | Quartz | II (65) | −63.4 to −57.7 | −6.9 to 10.2 | 9.5–13.8 | NA | NA | NA | 173–282 | | III (44) | NA | NA | NA | −5.9 to −1.2 | NA | 2.1–9.1 | 179–269 | | Stage 3 | Fluorite | III (57) | NA | NA | NA | −5.4 to −0.4 | NA | 0.7–8.4 | 138–213 |
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Tm(ice), temperature of final ice melting; Tm(NaCl), melting temperature of halite crystals; (65) is the number of inclusions measured.
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