Publication details
The variability of chemical composition of the syntectonic fluids, Moravo-Silesian Paleozoic
| Authors | |
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| Year of publication | 2015 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | Hydrothermal syntectonic veins are widespread throughout sedimentary sequences of Moravo-Silesian Paleozoic. This veins are mainly made up of quartz, calcite and chlorite. Four localities are in centre of our interest. There are 2 types of fluid inclusions in quartz (primary and pseudosecondary) which were investigated – liquid (L) + vapor (V) and vapor only. Chemical composition of L+V inclusion were determined as H2O-NaCl ± Mg, K, and Fe chloride, meanwhile chemical compostition of vapour-rich inclusion is CH4-CO2. Homogenization temperatures of two-phase inclusions vary between 112 to 348°C. The ice-melting temperatures suggest low salinity of fluids. Methane is dominating species in CH4-CO2 inclusions. Chlorite geothermometry were applied only on samples from western part of the area. These temparatures correspond to the temperatures obtained from microthermometry. |