Epigenetic minerals from the Czech part of the Upper Silesian Basin

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Acta Mus. Moraviae, Sci. Geol. 106 (2021), issue 2, pages 88-123

Epigenetic minerals from the Czech part of the Upper Silesian Basin

The paper presents a summary of findings of epigenetic minerals (minerals of the hydrothermal association) in the Czech part of the Upper Silesian Basin. These were gradually acquired during the exploitation of bituminous coal in the Ostrava, Karviná and Příbor areas. The overview of epigenetic minerals includes both minerals from the fillings of tectonic structures and minerals known from the fissures of carbonate concretions. Findings of sulphides (galena, chalcopyrite, marcasite, millerite, pyrite, siegenite, sphalerite), oxides (anatase, quartz), carbonates (calcite, dolomite–ankerite series, siderite), sulphates (baryte), phosphates (fluorapatite), silicates (chlorite group mineral), and organic compounds (evenkite?) are described in detail. The following paragenetic series are assumed based on the mineral succession: (I) quartz I → carbonates I (dolomite, Fe–rich dolomite, Mg–rich ankerite, siderite) → (II) pyrite I → sulphides (chalcopyrite, pyrite II, millerite, sphalerite, galena, marcasite, siegenite) → (III) baryte → carbonates II (calcite), quartz II → dickite → (IV) hydrocarbons (e.g. evenkite, hatchettine). The age of low–temperature hydrothermal mineralization has not yet been verified reliably. Hydrothermal fluids were rich in hydrocarbons and can be characterized as H2O – NaCl ± hhc, resp. hhc ± H2O – NaCl.


Petr Welser, Papírenská 787, 739 21 Paskov, e-mail: petr.welser@seznam.cz
Marek Slobodník, Department of Geological Sciences, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic, e-mail: marek@sci.muni.cz
Ondřej Malek, Green Gas DPB, a.s., Rudé armády 637, 739 21 Paskov, e-mail: on.malek.dra@centrum.cz
Michal Osovský, Emila Holuba 5, 736 01, Havířov–Podlesí, e-mail: m.osovsky@seznam.cz
Jakub Jirásek, Department of Geology, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic, e-mail: jakub.jirasek@upol.cz
Dalibor Matýsek, Department of Geological Engineering, Faculty of Mining and Geology, Vysoká škola báňská – Technical University of Ostrava, 17. listopadu 15/ 2172, 708 33 Ostrava–Poruba, Czech Republic, e-mail: dalibor.matysek@vsb.cz

Welser, P., Slobodník, M., Malek, O., Osovský, M., Jirásek, J., Matýsek, D., 2021: Epigenetické minerály české části hornoslezské pánve. – Acta Mus. Morav., Sci. Geol., 106, 2, 88–123 (with English summary)
ISSN: 1211–8796