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Palynology of selected coal seams and accompanying sediments of the Laziska and Libiaz Beds (Moscovian) in the Polish part of the Upper Silesian Basin
Bojdová, Lenka ; Opluštil, Stanislav (advisor) ; Kvaček, Zlatko (referee)
This thesis summarizes palynological and paleontological study of the middle part of the Cracow Sandstone Series which is divided into the Łaziska (Bolsovian) and the Libiąz Beds (Asturian). Samples were obtained from the borehole G5 Dab nearby Jaworzno from both coal and non-coal sediments. Palynological study confirmed the stratigraphical gap between these two beds by observation of dissapearance of nine miospore taxons at the bottom of the Libiąz Beds (Torispora, Converrucosisporites, Schulzospora, Gillespieisporites, Schopfites, Convolutispora, Cristatisporites, Tripartites, Cingulizonates). Different ecological demands during the coal and non-coal sedimentation were confirmed. The sedimentation of the Łaziska coal seams is characterized by alternation of lycospore and densospore phases which confirmes alternation of the contrasting plant assamblages with a predominance of the arborescent lycopsids Lepidodendron and Lepidophloios and sub-arborescent lycopsid Omphalophloios. Arborescent lycopsids preferred planar (rheotrophic) mires. Plant assamblages with predominance of the lycopsid Omphalophloios colonized drier peat swamps with fluctuating water level (ombrothrophic). Peat swamp vegetation in Libiąz Beds was damper with localy transitional phase with increased incidence of the genus...
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Carboniferous flora of the Czech part of the Upper Silesian Basin and its stratigraphic importance
Bojdová, Lenka ; Opluštil, Stanislav (advisor) ; Kvaček, Zlatko (referee)
This thesis provides an overview of the Carboniferous flora in the Czech part of the Upper Silesian Basin and its applications in stratigraphy. The sediments of the Upper Silesian Basin with wetland carboniferous vegetation were deposited for about 10 million years. During this period, the floristic character was varying. According to the associations of species we can divide the filling into the stratigraphical units. The basin includes lycopodiophytes, horsetails, ferns, fern-like plants, cordaites, and ginkophytes. The filling began by the Ostrava formation with paralic basin flora with the leading species Sphenopteris adiantoides. Coal seams alternate with non-coal facies with culm flora. Thanks to the paleogeographic changes and marine transgression, the floristic associations changed. Sk. f. h. Enny is the major borderline between middle and upper floristic zones of the lower Namur, in which culm flora disappeared. After the hiatus, Karvinská formation with the important seam Prokop sediments. The formation is characterized by middle Namurian to the Lower Westphalian plants, without non-coal sections. The Upper Namurian plants are located in the sedlové and sušské layers. In the lower sušské layers the biostratigraphical interface of Namur/Westphal is indicated by Lyginopteris hoeninghausii....
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Lithofacies and cyclic pattern of the upper part of the Poruba Member (Serpukhovian) in the eastern part of the Ostrava-Karviná coalfield
Michlová, Nikol ; Opluštil, Stanislav (advisor) ; Jirásek, Jakub (referee)
The diploma thesis studies lithofacies and cyclic pattern of about 200 m thick upper part of the Poruba Member (Serpukhovian) in the Karviná area of the Ostrava-Karviná coalfield. The objective of this thesis is to identify laterally persistent cycles from the local ones by the set of cross-sections and to better understand their formation, especially the role of glacio- eustatic sea level changes. Set of cross-sections constructed from boreholes were used for this study. The three genetic cycles were identified in the thesis based on previous studies of Gastaldo et al. (2009). From base to top the cycles are the (i) Max, (ii) Otakar a (iii) Gaebler. Their thickness fluctuates between 19.9 and 109.9 meters. The genetic cycles are bounded, with one exception, by a transgressive erosional surface of important faunal marine bands. From the set of cross-sections and maps of thickness and sand content (%), constructed for individual genetic cycles, it is obvious that the area of maximum thickness corresponds to area of increased content of medium- and coarse-grained sandstone. Maxima of sand content and thicknesses follow NNE-SSW direction, which is in agreement with basin axis. These maxima are interpreted as areas occupied by fluvial channels that are responsible for deposition of coarse- grained...
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Palynology of selected coal seams and accompanying sediments of the Laziska and Libiaz Beds (Moscovian) in the Polish part of the Upper Silesian Basin
Bojdová, Lenka ; Opluštil, Stanislav (advisor) ; Kvaček, Zlatko (referee)
This thesis summarizes palynological and paleontological study of the middle part of the Cracow Sandstone Series which is divided into the Łaziska (Bolsovian) and the Libiąz Beds (Asturian). Samples were obtained from the borehole G5 Dab nearby Jaworzno from both coal and non-coal sediments. Palynological study confirmed the stratigraphical gap between these two beds by observation of dissapearance of nine miospore taxons at the bottom of the Libiąz Beds (Torispora, Converrucosisporites, Schulzospora, Gillespieisporites, Schopfites, Convolutispora, Cristatisporites, Tripartites, Cingulizonates). Different ecological demands during the coal and non-coal sedimentation were confirmed. The sedimentation of the Łaziska coal seams is characterized by alternation of lycospore and densospore phases which confirmes alternation of the contrasting plant assamblages with a predominance of the arborescent lycopsids Lepidodendron and Lepidophloios and sub-arborescent lycopsid Omphalophloios. Arborescent lycopsids preferred planar (rheotrophic) mires. Plant assamblages with predominance of the lycopsid Omphalophloios colonized drier peat swamps with fluctuating water level (ombrothrophic). Peat swamp vegetation in Libiąz Beds was damper with localy transitional phase with increased incidence of the genus...
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Carboniferous flora of the Czech part of the Upper Silesian Basin and its stratigraphic importance
Bojdová, Lenka ; Opluštil, Stanislav (advisor) ; Kvaček, Zlatko (referee)
This thesis provides an overview of the Carboniferous flora in the Czech part of the Upper Silesian Basin and its applications in stratigraphy. The sediments of the Upper Silesian Basin with wetland carboniferous vegetation were deposited for about 10 million years. During this period, the floristic character was varying. According to the associations of species we can divide the filling into the stratigraphical units. The basin includes lycopodiophytes, horsetails, ferns, fern-like plants, cordaites, and ginkophytes. The filling began by the Ostrava formation with paralic basin flora with the leading species Sphenopteris adiantoides. Coal seams alternate with non-coal facies with culm flora. Thanks to the paleogeographic changes and marine transgression, the floristic associations changed. Sk. f. h. Enny is the major borderline between middle and upper floristic zones of the lower Namur, in which culm flora disappeared. After the hiatus, Karvinská formation with the important seam Prokop sediments. The formation is characterized by middle Namurian to the Lower Westphalian plants, without non-coal sections. The Upper Namurian plants are located in the sedlové and sušské layers. In the lower sušské layers the biostratigraphical interface of Namur/Westphal is indicated by Lyginopteris hoeninghausii....
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Reinterpretation of Carboniferous strata in the borehole no Stonava SV 2. The Czech part of the Upper Silesian basin
Horak, J. ; Martinec, Petr ; Waclawik, Petr ; Málek, O.
Borehole no Stonava SV 2 was realized in 1968 - 70 yrs. for the verification of the stratigraphy of Carboniferous strata in Karviná area. This borehole was very important for regional study. The original interpretation of the stratigraphy of the Ostrava and Karviná Fms in this borehole was inaccurate, that is, without the revision, used the current publications. The borehole SV 2 was situated between the Stonava and Albrechtice tectonic fault, in block in a Karviná graben. Strong tectonic disturbances in this tectonic structure lead without revision of correlation horizons incorrect determination of litostratigraphy and the thickness of individual members of Ostrava and Karviná Fms in Carboniferous strata. Because the boundaries of individual members of the Ostrava Fm are given into the ceilings of the marine horizon, it is a mistake to disregard the new findings from the study of their association of fauna in marine horizons and geological structure in a new mine boreholes, realized later in the neighbouring of the borehole SV 2. In the case of good primary geological documentation of borehole Stonava SV 2, however, it is possible at any time proceed to reinterpretation.
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