Browsing by Subject "Skole unit"

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Access status: Open Access ,
Paleogene microfossils from the submarine debris flows in the Skole basin (Polish and Ukraine Outer Carpathians)
(Wydawnictwa AGH, 2014) Szydło, Andrzej; Garecka, Małgorzata; Jankowski, Leszek; Malata, Tomasz
Biostratigraphic analysis of fossils material has allowed the documentation of sediment gravity flows in the Skole basin during the Paleocene and Eocene times, and also in the Eocene-Oligocene transition. This most external basin of the NE Outer Carpathians was a marginal sea especially sensitive to geotectonic instability and relative sea-level change, favoring the development of down slope movements at these times. The dominance of calcareous forms in foraminifera, and a large share of redeposited species among the nanno- and microfossils indicate a close relationship of sediments containing them with the shelf environment and documents not too long transport. Additionally the recycled forms are often well preserved, indicating that the rock contained in flows were only plasticized and hydrated while the material itself was not a subject of significant mechanical processing in contrast to that one, which directly documented down slope moving. The latter forms are bad preserved and their fossil remains are usually corroded, partially dissolved and broken during this process. In addition, the planktonic forms including foraminifera, calcareous dinocysts and nannoplankton allow documenting the time of the final deposition of the sediment transported on slope.
Access status: Open Access ,
Produktywność karpackich skał zbiornikowych w świetle historii wydobycia węglowodorów
(Wydawnictwa AGH, 2008) Marcinkowski, Artur; Szewczyk, Elżbieta
The paper intends to characterize productivity of oil- and gas-bearing Carpathian sandstones in the area situated to the east of the Wisłok river valley where prospects for new hydrocarbon discoveries are best. It was based on materials from the POGC's files, which contain full documentation of oil, gas and reservoir water production from particular fields and wells. Graphs of the media production, constructed for the Silesian and Skole units, illustrate trends of the production decline in the years 1955-2007. The most fundamental premises for assessment of prospects for new oil-field discoveries result from diagrams that document the productivity of individual oil- and gas-bearing horizons, as well as depth intervals of occurrence of hydrocarbon inflows, shows and traces. Interpretation of the presented data indicates that in the Silesian Unit the greatest oil production was achieved from the Lgota and Krosno sandstones, whereas gas production - from the Istebna Sandstones. In the Silesian Unit, the Kliwa Sandstones of the Menilite Beds represent a predominating productive series, the sandstones are characterized by the best reservoir properties over the whole analyzed area.