Depositional environment and hydrocarbon potential of the
Oligocene Menilite Formation in the Western Carpathians: A case
study from the Loučka section (Czech Republic)

J 2019

Depositional environment and hydrocarbon potential of the Oligocene Menilite Formation in the Western Carpathians: A case study from the Loučka section (Czech Republic)

JIRMAN, Petr, Eva GERŠLOVÁ, Miroslav BUBÍK, Reinhard F. SACHSENHOFER, Achim BECHTEL et. al.

Základní údaje

Originální název

Depositional environment and hydrocarbon potential of the Oligocene Menilite Formation in the Western Carpathians: A case study from the Loučka section (Czech Republic)

Autoři

JIRMAN, Petr (203 Česká republika, garant, domácí), Eva GERŠLOVÁ (203 Česká republika, domácí), Miroslav BUBÍK (203 Česká republika), Reinhard F. SACHSENHOFER (40 Rakousko), Achim BECHTEL (40 Rakousko) a Dariusz WIĘCŁAW (616 Polsko)

Vydání

Marine and Petroleum Geology, Oxford, ELSEVIER SCI LTD, 2019, 0264-8172

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Impakt faktor

Impact factor: 3.790

Kód RIV

RIV/00216224:14310/19:00109823

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.marpetgeo.2019.05.034

UT WoS

000484871100023

Klíčová slova anglicky

Menilite Formation; Paratethys; Outer Flysch Carpathians; Eocene-Oligocene boundary; Source rock potential; Organic petrography; Thermal maturity; Biomarkers

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 3. 4. 2020 14:48, Mgr. Marie Šípková, DiS.

Anotace

V originále

The Eocene-Oligocene boundary in the Paratethys area represents a period associated with a major extinction event followed by anoxic events. A good understanding of the factors controlling the formation of organic-rich layers is a key for prediction of source rock distributions. An excellent opportunity to study these factors is provided by the Loučka section situated in the Silesian Unit of the Czech Republic. The Menilite Formation is subdivided into the Subchert Member, Chert Member, Dynów Marlstone and Šitbořice Member and comprises non-calcareous shales, marlstones and cherts. The lithological variations reflect strongly depositional environment, which caused strong changes in geochemical parameters and source rock potential. The ratio of total organic carbon to total sulphur (TOC/TS) and methylated 2-methyl-2 (trimethyltridecyl) chroman (MTTC) ratios supported by paleontological evidence show normal marine to brackish water conditions. Pr/Ph ratios indicate strictly anoxic conditions during deposition of the upper part of the Subchert Member and the lower part of the Chert Member. Very low steranes/hopanes ratios reflect strong bacterial activity during deposition of the Chert Member. Very high HI values (> 600 mg HC/g TOC) and the apparent absence of terrestrial macerals suggest that high amounts of C29 steranes and long-chain n-alkanes in this member result from the input of algal material. The Menilite Formation contains mainly type II kerogen and typically holds a “good” source rock potential. HI values > 600 mg HC/g TOC are observed in the Chert Member, while values < 250 mg HC/g TOC occur in some low TOC samples from the base of the Subchert Member. Tmax and low homohopane ratios confirm that the organic matter is immature. The source potential index (SPI) of the entire succession of the Menilite Formation is about 1.25 t HC/m2, which is significantly lower than SPI determined for the Polish and Ukrainian Carpathians, but mainly due to the lower thickness.

Návaznosti

MUNI/M/0081/2013, interní kód MU

Název: Energetická infrastruktura a její vliv na energetickou bezpečnost

Investor: Masarykova univerzita, Energetická infrastruktura a její vliv na energetickou bezpečnost, INTERDISCIPLINARY - Mezioborové výzkumné projekty

Přiložené soubory

Jirman_et_al__2019__Loucka_-_MPG.pdf

Požádat o autorskou verzi souboru

Citovat

JIRMAN, Petr, Eva GERŠLOVÁ, Miroslav BUBÍK, Reinhard F. SACHSENHOFER, Achim BECHTEL a Dariusz WIĘCŁAW. Depositional environment and hydrocarbon potential of the Oligocene Menilite Formation in the Western Carpathians: A case study from the Loučka section (Czech Republic). Marine and Petroleum Geology. Oxford: ELSEVIER SCI LTD, 2019, roč. 107, SEP 2019, s. 334-350. ISSN 0264-8172. Dostupné z: https://dx.doi.org/10.1016/j.marpetgeo.2019.05.034.

@article{1536557,
   author = {Jirman, Petr and Geršlová, Eva and Bubík, Miroslav and Sachsenhofer, Reinhard F. and Bechtel, Achim and Więcław, Dariusz},
   article_location = {Oxford},
   article_number = {SEP 2019},
   doi = {http://dx.doi.org/10.1016/j.marpetgeo.2019.05.034},
   keywords = {Menilite Formation; Paratethys; Outer Flysch Carpathians; Eocene-Oligocene boundary; Source rock potential; Organic petrography; Thermal maturity; Biomarkers},
   language = {eng},
   issn = {0264-8172},
   journal = {Marine and Petroleum Geology},
   title = {Depositional environment and hydrocarbon potential of the Oligocene Menilite Formation in the Western Carpathians: A case study from the Loučka section (Czech Republic)},
   url = {https://www.sciencedirect.com/science/article/pii/S0264817219302399},
   volume = {107},
   year = {2019}
}

TY  - JOUR
ID  - 1536557
AU  - Jirman, Petr - Geršlová, Eva - Bubík, Miroslav - Sachsenhofer, Reinhard F. - Bechtel, Achim - Więcław, Dariusz
PY  - 2019
TI  - Depositional environment and hydrocarbon potential of the Oligocene Menilite Formation in the Western Carpathians: A case study from the Loučka section (Czech Republic)
JF  - Marine and Petroleum Geology
VL  - 107
IS  - SEP 2019
SP  - 334-350
EP  - 334-350
PB  - ELSEVIER SCI LTD
SN  - 02648172
KW  - Menilite Formation
KW  - Paratethys
KW  - Outer Flysch Carpathians
KW  - Eocene-Oligocene boundary
KW  - Source rock potential
KW  - Organic petrography
KW  - Thermal maturity
KW  - Biomarkers
UR  - https://www.sciencedirect.com/science/article/pii/S0264817219302399
L2  - https://www.sciencedirect.com/science/article/pii/S0264817219302399
N2  - The Eocene-Oligocene boundary in the Paratethys area represents a period associated with a major extinction event followed by anoxic events. A good understanding of the factors controlling the formation of organic-rich layers is a key for prediction of source rock distributions. An excellent opportunity to study these factors is provided by the Loučka section situated in the Silesian Unit of the Czech Republic. The Menilite Formation is subdivided into the Subchert Member, Chert Member, Dynów Marlstone and Šitbořice Member and comprises non-calcareous shales, marlstones and cherts. The lithological variations reflect strongly depositional environment, which caused strong changes in geochemical parameters and source rock potential. The ratio of total organic carbon to total sulphur (TOC/TS) and methylated 2-methyl-2 (trimethyltridecyl) chroman (MTTC) ratios supported by paleontological evidence show normal marine to brackish water conditions. Pr/Ph ratios indicate strictly anoxic conditions during deposition of the upper part of the Subchert Member and the lower part of the Chert Member. Very low steranes/hopanes ratios reflect strong bacterial activity during deposition of the Chert Member. Very high HI values (> 600 mg HC/g TOC) and the apparent absence of terrestrial macerals suggest that high amounts of C29 steranes and long-chain n-alkanes in this member result from the input of algal material. The Menilite Formation contains mainly type II kerogen and typically holds a “good” source rock potential. HI values > 600 mg HC/g TOC are observed in the Chert Member, while values < 250 mg HC/g TOC occur in some low TOC samples from the base of the Subchert Member. Tmax and low homohopane ratios confirm that the organic matter is immature. The source potential index (SPI) of the entire succession of the Menilite Formation is about 1.25 t HC/m2, which is significantly lower than SPI determined for the Polish and Ukrainian Carpathians, but mainly due to the lower thickness.
ER  -

JIRMAN, Petr, Eva GERŠLOVÁ, Miroslav BUBÍK, Reinhard F. SACHSENHOFER, Achim BECHTEL a Dariusz WIĘCŁAW. Depositional environment and hydrocarbon potential of the Oligocene Menilite Formation in the Western Carpathians: A case study from the Loučka section (Czech Republic). \textit{Marine and Petroleum Geology}. Oxford: ELSEVIER SCI LTD, 2019, roč.~107, SEP 2019, s.~334-350. ISSN~0264-8172. Dostupné z: https://dx.doi.org/10.1016/j.marpetgeo.2019.05.034.

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