Waliczek, Marta
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nauki o Ziemi i środowisku
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Item type:Article, Access status: Open Access , Basin-centered gas accumulations in Rotliegend Sandstones - case study of Polish Permian Basin, first results(Wydawnictwa AGH, 2012) Nosal, Justyna; Waliczek, MartaPermian Basin covers one of the world's largest gas-bearing clastic formation - Permian Rotliegend Group. Reservoirs are supplied by Carboniferous sources, lying directly beneath. Permian Rotliegend sandstones belong to the most important gas bearing formations in Poland. They were deposited in playa, fluvial and aeolian depositional systems (Kiersnowski et al. 2010).Item type:Article, Access status: Open Access , Maturity of Menilite Shales from Polish Outer Carpathians based on vitrinite reflectance and Rock-Eval pyrolysis data(Wydawnictwa AGH, 2012) Waliczek, Marta; Więcław, DariuszMaturity of organic matter is one of the most important parameters characterizing the source rock. The maturation process depends on organic matter properties (kinetic parameters of kerogen) and burial history (temperature and time). The vitrinite reflectance measurements and Rock-Eval pyrolysis are widely used to characterize the maturity of organic matter occurring in the source rock. The purpose of the present study is to determine the thermal maturity of organic material present in Oligocene Menilite Shales from Polish Outer Carpathians based on vitrinite reflectance and Rock-Eval pyrolysis data. These organic-rich rocks are considered as a main source of oils accumulated in Outer Carpathian sequence (Kotarba & Kołtun 2006).Item type:Article, Access status: Open Access , An evaluation of organic matter dispersed in the Menilite Formation in Silesian Nappe (Polish Outer Carpathians): an optical microscopic approach(Wydawnictwa AGH, 2022) Waliczek, Marta; Machowski, Grzegorz; Solecki, Marek; Stefaniuk, MichałIn this study, optical microscopic analyses were applied to evaluate the thermal maturity, characteristics of solid bitumen, and other organic matter finely dispersed in Oligocene shales of the Menilite Formation in the Iwonicz-Zdrój–Rudawka Rymanowska Fold (IRF) and Bóbrka-Rogi Fold (BRF) of the Central Carpathian Synclinorium of the Silesian Nappe, Outer Carpathians, Poland. The investigation was carried out at two-unit depths of the shallow and deeper D-1 sections (430 m - IRF and 4,300 m - BRF) and outcrop samples (BRF). The mean random huminite reflectance values indicate immature conditions with respect to hydrocarbon generation in samples from the D-1 shallow section ($VR_{o}$ $\approx$ 0.40%) and in the outcrop samples ($VR_{o}$ = 0.36%). The degree of thermal maturity of the organic matter from a depth of about 4,300 m – BRF based on random vitrinite ($VR_{o}$ $\approx$ 0.80%) and solid bitumen ($BR_{o}$ $\approx$ 0.65%) reflectance measurements is associated with the »oil window« for petroleum generation. The organic components dispersed in the examined Menilite Formation samples are typical for hydrocarbon-prone organic matter, suggesting the dominant kerogen type II. The potential precursor maceral for solid bitumen occurring in the examined samples from the deeper D-1 sections is largely the alginite maceral.Item type:Article, Access status: Open Access , New data on burial and exhumation within Orava-Nowy Targ Intramontane Basin (Western Carpathians): results of vitrinite reflectance studies(Wydawnictwa AGH, 2014) Waliczek, Marta; Solecki, MarekThe aim of the study was to determine the maturity of organic matter in the Neogene sediments of the Orava-Nowy Targ Intramontane Basin and to estimate, according to vitrinite reflectance (Ro), maximum paleotemperatures affecting studied sediments.Item type:Article, Access status: Open Access , Basin-centered gas accumulations in Rotliegend Sandstones(Wydawnictwa AGH, 2014) Nosal, Justyna; Waliczek, MartaPermian Rotliegend Sandstones are the most important gas reservoirs in north-west Europe (Gast et al. 2010). Those sandstones were deposited in playa, fluvial and aeolian depositional systems (Kiersnowski et al. 2010) and may host both conventional and unconventional deposits.Item type:Article, Access status: Open Access , Correlation between organic and inorganic indicators of thermal maturity in Dukla Nappe (Polish Outer Carpathians)(Wydawnictwa AGH, 2014) Waliczek, Marta; Więcław, Dariusz; Świerczewska, AnnaCorrelation between organic (vitrinite reflectance (Ro) and Rock-Eval Tmax temperature) and inorganic (mixed layer illite/smectite (I/S)) indicators of thermal maturity depend mainly on the maximum temperature achieved by the rock and the time exposure of this temperature. During sedimentary or tectonic burial of rocks, clay minerals may react diversely to organic matter due to heat flow features and the duration of heating (Aldega et al. 2005). The aim of this study was to correlate maximum paleotemperatures of the Oligocene Menilite Shales from the Polish Outer Carpathians determined based on vitrinite reflectance and Rock-Eval pyrolysis data to those calculated using I/S ratio.