National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Genesis of the Vejprnice coal deposit in the Pilsen Basin
Salva, Otto ; Opluštil, Stanislav (advisor) ; Pešek, Jiří (referee)
High concentrations of surface and underground mine boreholes together with mining maps and documentation of several hundreds of coal seam sections measured and sampled in mine galleries of the Vejprnice coal deposit in the eastern part of the Pilsen Basin were analysed to reconstruct the depositional environment of the Lower Radnice seam in the Radnice Member and the Main Nýřany seam in the Nýřany Member. Data from borehole profiles were used for construction of contour maps of sandstone and breccia thickness and their percentage in intervals from the base of the Radnice Member (the beginning of Carboniferous sedimentation) to the base of the Lower Radnice seam and in intervals between coal seams and their benches. Maps of thickness between the Proterozoic basement and coal seams were used to construct presedimentary paleotopography, which was gradually filled with coal- bearing sediments. Coal seam sections from mining galleries were used for the construction of maps of the thickness, ash content, calorific value, volatile matter content, sulphur content and water content of the Lower Radnice and Main Nýřany coal seams. Contour maps and correlation cross-sections allowed reconstruction of a three-dimensional presedimentary paleotopography model. This model shows that the sedimentation of the...

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