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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Tectonosedimentary evolution and fluvio-deltaic systems of the Most Basin (Tertiary, Eger Graben, Czech Republic)
 Rajchl, Michal ; Uličný, David (advisor) ; Nehyba, Slavomír (referee) ; Janočko, Juraj (referee)
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Tectonosedimentary evolution and fluvio-deltaic systems of the Most Basin (Tertiary, Eger Graben, Czech Republic)
 Rajchl, Michal ; Uličný, David (advisor) ; Nehyba, Slavomír (referee) ; Janočko, Juraj (referee)
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Paleoenvironmental record of carboniferous lacustrine deposits of central and western Bohemian basins: analysis and korealiton of mineral and biogenic proxies
 Lojka, Richard ; Hradil, David (advisor) ; Hladil, Jindřich (referee) ; Janočko, Juraj (referee)
Ph.D. thesis represents summary of multidiciplinary palaeoenvironmental and palaeoclimatic research of the most significant Late Pennsylvanian lacustrine horizon of the central and western Bohemian basins - the Malesice Member of the Slaný Formation. Two cores from new shallow drills, situated 80 km apart, were analysed. Multidisciplinary approach is based on description of lamination structure and periodicity; mineral and isotopic composition of autigennic carbonates, namely siderite; compositiona of detrital minerals including clay mineral assemblages; and composition of autochthonous and allochthonous organic particles including palynospectra. Detailed analysis of drill cores lead to the identification of individual phases of lake development linked with lake-level fluctuation and water-column stratification, which were driven by a sume of precipitation and its seasonal distribution. Changes in precipitation also affected compostion and density of vegetational cover in the lake surroundings, weathering intesity of source rocks and degradation of organic matter in the drainage basin, and so precipitation affected final grain-size and composition of detrital material deposited in the lake. Beside common environmental signatures at both studied sites, there are also significant...
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