Wszystkie pola: microfossil - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A new problematic microfossil from the Eocene of Western Europe
Nowa problematyczna mikroskamieniałość z Eocenu Zachodniej Europy
Autorzy:: Szczechura, J.
Powiązania:: https://bibliotekanauki.pl/articles/23016.pdf
Data publikacji:: 1979
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Źródło:: Acta Palaeontologica Polonica; 1979, 24, 2
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Palaeoenvironments of the Middle Miocene evaporite-bearing deposits from the Działoszyce Trough, Carpathian Foredeep, Poland, based on microfaunal studies
Autorzy:: Szczechura, J.
Powiązania:: https://bibliotekanauki.pl/articles/2059430.pdf
Data publikacji:: 2000
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Carpathian Foredeep
Middle Miocene
evaporites
microfossil
biostratigraphy
palaeogeography
palaeoecology
Opis:: Analysis of microfossil distribution (foraminifera, ostracodes and bolboforms) in evaporite-bearing deposits from the Działoszyce Trough (northern Carpathian Foredeep) has allowed the distinction of three ecozones: the Globigerinoides ecozone (Lower Badenian), the Globigerina ecozone (Middle and Upper Badenian) including an evaporitic horizon, and the Anomalinoides dividens ecozone (Sarmatian). These ecozones are of ecostratigraphical significance and reflect major sea-level changes. The highest stands of sea-level correspond with the Globigerinoides ecozone and the upper part of the Globigerina ecozone, above the evaporites, and they are considered to relate to an influx of oceanic waters. Drastic climatic changes (cooling) and a sea-level fall that weakened bottom water circulation at the boundary between the Globigerinoides and Globigerina ecozones are considered the major factors which accounted for hypoxia (an oxygen-poor environment) that accompanied evaporitic deposition. The appearance of a specific ostracod assemblage (Xylocythere carpathica Szczechura and ?Microxestoleberis sp.) in Upper Badenian deposits is linked with the occurrence of active submarine hydrocarbon seepages.
Źródło:: Geological Quarterly; 2000, 44, 2; 119-135
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Age and evolution of depositional environments of the supra-evaporitic deposits in the northern, marginal part of the Carpathian Foredeep: micropalaeontological evidence
Autorzy:: Szczechura, J.
Powiązania:: https://bibliotekanauki.pl/articles/2059376.pdf
Data publikacji:: 2000
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Carpathian Foredeep
Middle Miocene
microfossil
biostratigraphy
palaeoecology
palaeogeography
Opis:: A rich assemblage of microfossils, including foraminifera, ostracodes and bolboforms (calcareous phytoplankton) have been found in the supra-evaporitic deposits of the Pecten Beds (Upper Badenian) and Krakowiec Clays (Sarmatian) of Middle-Miocene age, which occur in the Jamnica S-119 borehole near Tarnobrzeg, in the central part of the Carpathian Foredeep. Environmental conditions have been deduced from these microfossils. Comparison with other parts of the Carpathian Foredeep shows that microfauna distribution depended on location within the sedimentary basin and on hydrological conditions. Poorly-diversified and specific microfossils were associated with evaporites and overlying sediments (particularly within the lower Pecten Beds and Krakowiec Clays), indicating poorly-oxygenated near-bottom waters. Possibly, "Upper-Badenian" and "Sarmatian" biofacies had already differentiated by the end of the Badenian. Distribution of the Upper Badenian microfauna and bolboforms in the Polish part of the Carpathian Foredeep and beyond shows that there was faunal exchange between the eastern and western parts of the Polish section of the Carpathian Foredeep, and indicates connection between the Central Paratethys and Mediterranean basin areas.
Źródło:: Geological Quarterly; 2000, 44, 1; 81-100
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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