National Repository of Grey Literature 26 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Geochemical markers from foraminiferal tests as a tool for reconstruction of paleoceanological environments: a case study from the Miocene of the Central Paratethys
Scheiner, Filip ; Holcová, Katarína (advisor) ; Grunert, Patrick (referee) ; Demeny, Attila (referee)
This thesis deals with the use of geochemical proxies on foraminifera for paleoceanographical, paleoecological and paleoenvironmental interpretations in the fossil epicontinental sea - the Central Paratethys during the Langhian. It discusses the used methodologies and approaches that were specially chosen to fit the problematic of the studied area such as the single test analysis of carbon and oxygen stable isotopes on foraminifera. Other geochemical methods were represented by Mg/Ca based paleothermomethry and by several organic geochemistry proxies on whole rock samples (n-alkane indices, δ13 Corg, and carbon ratios - TOC/TIC/TC). These were further combined with foraminiferal paleoecological data, which allowed identification of particular water masses in the studied region as well as the prevailing circulation patterns/regimes during the studied interval in the Paratethyan marine realm. Additionally, there were interpreted various regional paleoenvironmental and paleoecological consequences. The Paratethys had similar hydrography of surficial waters with the Mediterranean, conversely to the bottom waters that were different, probably of a regional origin with their own evolution during the studied time interval. The anti-estuarine circulation regime, which was probably linked with the closure...
Ostracods of selected stratigraphic levels of the Ordovician of the Prague Basin
Lajblová, Karolína ; Kraft, Petr (advisor) ; Holcová, Katarína (referee) ; Kyška Pipík, Radovan (referee)
The submitted doctoral thesis presents an introductory comment and a set of four publications focused on the revision of the Ordovician ostracods of the Prague Basin. The research of them was insufficient in past in contrast to the diversity and abundance of ostracod material recorded in this area. Major characteristics of the study group with a focus on morphology, ecology and history of research are discussed in the introductory chapters. In the following parts, the attention is paid to the ostracods of the Lower, Middle and Upper Ordovician of the Prague Basin and their comparison with assemblages of the other paleoregions. The published papers are focused on the comprehensive revisions of the ostracods of the Klabava, Šárka and Králův Dvůr formations. The studies resulted in systematic monographs supplemented with a study on the ontogeny of the widespread species Conchoprimitia osekensis (Přibyl, 1979). The taxonomy, palaeogeography and overall diversity of studied Ordovician species are also included and discussed.
Planktonic ecosystems of the Upper Jurassic and Cretaceous (calcareous nannoplankton, calpionellids)
Svobodová, Andrea ; Holcová, Katarína (advisor) ; Skupien, Petr (referee) ; Oszczypko-Ciowes, Marta (referee)
The presented PhD thesis is compiled as a commentary to four published papers, which deal with planktonic assamblages of the Upper Jurassic and Cretaceous, namely with calcareous nannofossils and calpionellids. The first part of the dissertation thesis describes the main characteristics of the studied fossil groups with focus on their morphology, palaeoecology, evolution and systematics. The chapter of calcareous nannoplankton gives special attention to the biostratigraphicaly important genus Nannoconus Kampter 1931. Next chapters describe the methods of the laboratory processing of the sediments and the geological settings of the studied areas. The thesis is focused on two areas. At first the selected localities in the Bohemian Cretaceous Basin, i.e. Upper Turonian and Upper Coniacian, are described. Generally, the Upper Cretaceous platform sediments of the middle European basins are rich in calcareous nannoplankton. These fossils represent important marker for biostratigraphical and palaeoecological interpretations. The second part describes carbonate rocks of the Upper Jurassic and Lower Cretaceous of the Tethyan area. In this case, calcareous nannoplankton and calpionellids are an essential part of the modern multidisciplinary form of the Jurassic- Cretaceous (J/K) boundary interval research....
Marine microorganisms: the complex project in the learning for geology and biology at grammar schools
Minaříková, Veronika ; Holcová, Katarína (advisor) ; Matějka, Dobroslav (referee)
This thesis deals with modifications of professional microscopic methods for classroom use. There is a laboratory prepared sample Miocene age with marine microfossils of the Carpathian Foredeep. It was created manual for teachers, where is provided detailed instructions from finding a suitable locality, through sample collection, after their processing, and consequent observations. Each founded microfossil group is briefly characterised. The proces is properly modificate for realization of laboratories with elements of inquiry- based instruction at schools. At least this topic is incorporated in Framework Education Programmes and selected sample of textbooks. Key words: laboratories, microfossils, Miocene, badenian, Carpathian Foredeep, manual for teachers, inquiry-based instruction
Imprint of the MMCT in the marine record in the Carpathian Foredeep
Suchánek, Vladimír ; Holcová, Katarína (advisor) ; Hudáčková-Hlavatá, Natália (referee)
The theoretical part of this thesis is divided into three main chapters that deal with the issue storm deposits and their presence in the sedimentary record of borehole HR-1. One of the chapters dedicated to foraminifera tests as taphonomic indicators, which are stratigraphically and paleoecologically significant. Within the frame of this thesis it was thought to foraminifera more sedimentological than palaeontological or rather the tests of foraminifera were considered as specific particles, which on the seabed or in the water column were moving such as a grain of sand. The principal parameters for were selected size of test, mechanical wearing and life strategy (benthic forms inhabiting at the bottom and planktonic forms inhabiting within the whole or only in some parts of the water column). The second theoretical chapter is dealing with the tempestites, especially the condition of origin, identification and interchangeability for deposits of turbidite currents, Hummocky cross-stratification (HCS) and relation between tempestites and climate changes or atmospheric CO2. The last part of theory is devoted to overview of the geological formation of the Carpathian Foredeep and its evolution during the Neogene. This part is also supplemented with a description of the place and the borehole including...
Marine microorganisms: the complex project in the learning for geology and biology at grammar schools
Minaříková, Veronika ; Holcová, Katarína (advisor) ; Mourek, Jan (referee)
This thesis deals with incorporating microorganisms into teaching. The main idea was to create guide for teachers at high schools, whereby they could create own excursion. Thesis is divided into didactical and practical part, didactical part of thesis is coping with incorporating into teaching, especially into RVP ZV, RVP G and textbooks. Practical part delas with the creating of metodical guide for teachers. This thesis also contains questionnaire analysis of respondent's relationship to biology and geology. Key words: Inquiry lessons, badenian, excusion, miocene, neogene, Carpathian foredeep, microorganisms, "hands-on" activities
Science field trip to the "Český kras" area for the secondary school
Pekárovics, František ; Holcová, Katarína (advisor) ; Vajskebrová, Markéta (referee)
The aim of this bachelor thesis is the design and development of natural science model school excursion, using the "Český kras" as an area in which it would take place. Also, creation of the worksheets and methodological recommendations for a smooth running of the excursion.
Carbon and Oxygen Stable Isotope Ratio from Foraminiferal Tests as a Key to the Paleoenvironmental Interpretations in the Middle Miocene of the Carpathian Foredeep (Central Paratethys)
Scheiner, Filip ; Holcová, Katarína (advisor) ; Soták, Ján (referee)
The (Lomnice) LOM-1 borehole records a nutrient-rich quiet environment of the outer shelf to upper bathyal in the Mid Badenian (sensu Hohenegger et al. (2014)) of the Carpathian Foredeep. The LOM-1 borehole is rich of a fossil content with a relatively good preservation. The studied section can be correlated with the interval from 14.6 Ma (the FO of Orbulina spp.) to 13.42 Ma (the LO of Sphenolithus heteromorphus) which agrees with the beginning of the "Middle Miocene Climate Transition". The foraminifera for the carbon and oxygen stable isotope analysis were picked from the fraction 0.063-2 mm. The suitability for the stable isotope analysis was carefully evaluated based on the inner wall preservation. The isotopic analysis was done for fifteen samples with total 373 tests analyzed. Each analysis was performed from exactly one test. The following foraminiferal genera from different paleobiotops were used for the isotope analysis: Globigerina bulloides; Orbulina universa, Praeorbulina glomerosa; Globigerinoides spp.; Uvigerina spp.; Heterolepa dutemplei; Cibicidoides spp.; Gyroidinoides spp. and Melonis pompilioides to document the isotopic signal for the superficial and bottom waters. The oxygen and carbon isotope analysis from foraminiferal tests were used for the verification of the...

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