Geochemical characteristics, thermal maturity and source rock potential of the Oligocene Šitbořice Member of the Menilite Formation in the Ždánice Unit (Czech Republic)

Jirman, P.; Geršlová, E.; Pupp, M.; Bubík, M.

doi:10.7306/gq.1447

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Tytuł artykułu

Geochemical characteristics, thermal maturity and source rock potential of the Oligocene Šitbořice Member of the Menilite Formation in the Ždánice Unit (Czech Republic)

Autorzy

Jirman P. , Geršlová E. , Pupp M. , Bubík M.

Treść / Zawartość

Pełne teksty:

Jirman_P_Geochemical_Geol. Quart._Vol. 62_No 4_2018.pdf

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Identyfikatory

DOI

10.7306/gq.1447

Warianty tytułu

Języki publikacji

Abstrakty

Rocks deposited in the Oligocene Paratethys are recognized as one of the most important source rocks in the Flysch Carpathians. The Šitbořice Member (uppermost NP23 to lowermost NP25 zone) represents the upper part of the Menilite Formation in the Outer Flysch Carpathians of the Czech Republic. This paper presents results of bulk geochemical analysis, Rock-Eval pyrolysis and organic petrography. The geochemical evaluation, source rock potential, kerogen type and thermal maturity were studied using borehole cores. Based on the classification of Peters (1986), the evaluated Šitbořice Member is mostly classified as a “very good” source rock according to TOC and variable, mostly “poor” to “good” according to the petroleum potential. However, the average petroleum potential value assigned the member to “good” source rock which is in accordance with the TOC classification if the “live” TOC is used. A comparable distribution between kerogen type II and III has been indicated by HI. Unlike this, the organic petrography observations show the organic matter belongs to the kerogen type II which corresponds to the relationship of residual hydrocarbon potential versus TOC and HI calculated based on “live” organic carbon. Presumed immaturity was confirmed by R_r and Rock-Eval T_max. Oxygen-restricted conditions ora dysoxic environment have been indicated by the TOC/TS ratio.

Słowa kluczowe

Šitbořice Member Menilite Formation Outer Flysch Carpathians source rock potential thermal maturity organic petrography

Wydawca

Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy

Czasopismo

Geological Quarterly

Rocznik

2018

Tom

Vol. 62, No. 4

Strony

858--872

Opis fizyczny

Bibliogr. 85 poz., mapa, rys., tab., wykr.

Twórcy

autor

Jirman P.

p.jirman@seznam.cz

Masaryk University, Faculty of Science, Department of Geological Sciences, Kotlářská 2, 611 37 Brno, Czech Republic
Czech Geological Survey, Leitnerova 22, 602 00 Brno, Czech Republic

autor

Geršlová E.

Masaryk University, Faculty of Science, Department of Geological Sciences, Kotlářská 2, 611 37 Brno, Czech Republic

autor

Pupp M.

Montanuniversität Leoben, Chair of Petroleum Geology, Peter-Tunner Straꞵe 5, 8700 Leoben, Austria

autor

Bubík M.

Czech Geological Survey, Leitnerova 22, 602 00 Brno, Czech Republic

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).

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Bibliografia

Identyfikator YADDA

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