Obsah síry v cementářských vápencích ložiska Mokrá a její zdroj

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Title in English	Sulphur content in limestones for cement industry at the Mokrá Quarry and its source
Authors	DONOCIK Roman SLOBODNÍK Marek
Year of publication	2011
Type	Article in Periodical
Magazine / Source	Geol. výzk. Mor. Slez.
MU Faculty or unit	Faculty of Science
Citation
Field	Geology and mineralogy
Keywords	limestones sulphur sulphides hydrothermal alteration
Description	Limestones with very high percentage of CaCO3 and a small amount of remaining oxides (principally SiO2 and SO3) are important industrial rocks. Vilémovice limestones (Macocha Fm.) in Mokrá quarry are widely known as best pure type not only for cement industry. However, anomalous content of sulphur above limits occurs fairly often in analyses of those limestones. Sulphur contents in limestones complicate a process of clinker firing, especially because of the increase of emissions and an absence of positive chemical reactions during the firing. The reason of their frequent occurrence in the Mokrá quarry is a hydrotermal alternation of these limestones producing the formation of sulphides (pyrite, sphalerite, galena), sheet silicates (besides Si and Al containing Fe, Mg, K) together with other hydrothermal minerals.
Related projects:	Geochemical and tectonic model of fluid migration in the paleozoic of Moravo-Silesian region Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)