Publication details
Contrasting types of fluids from two gold historical mining sites, Jeseníky Mts
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| Year of publication | 2018 |
| Type | Conference abstract |
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| Description | Goal of this study is to compare two different types of fluid inclusions (FI) from two Au deposit in the Jeseníky Mts. Samples of quartz were taken from two localities in the Hrubý Jeseník Mts. – Výrův kámen near Zlaté Hory and Zlatý Chlum near Jeseník. Výrův kámen hill is composed mostly of quartzites. Quartz veins crosscut those quartzites. There are quartzites, mica-schists and biotite gneisses as well as quartz veins and lenticular bodies with gold mineralization at Zlatý Chlum. Most of the inclusions from both localities contain two immiscible liquids (L1+L2) at laboratory temperature (ca. 25°C). According to microthermometry, L1+L2 FI from Výrův kámen contain aqueous solution with Na-chloride and liquid CO2 (H2O-NaCl-CO2), while FI from Zlatý Chlum include aqueous solution and methane (H2O-NaCl-CH4). Mineralization at the Zlatý Chlum probably originated from more reducing fluids. |