Temat: maturity modelling - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Burial and thermal history of the Upper Silesian Coal Basin (Poland) constrained by maturity modelling : implications for coalification and natural gas generation
Autorzy:: Botor, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/1836355.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: maturity modelling
vitrinite reflectance
hydrocarbon generation
methane
Variscides
Carboniferous
Opis:: Maturity modelling was carried out using basin and petroleum system modelling (BPSM) software in the lithologic sections of 17 wells of the Upper Silesian Coal Basin (Poland). The best fit between calculated and measured vitrinite reflectance (VR), porosity and density data was obtained by applying a thickness of eroded sedimentary overburden from 1700 m in the east to 4500 m in the west and relatively low to moderate heat flow values during the maximum late Carboniferous burial. These heat flow values were in the range 50-71 mW/m2
Źródło:: Annales Societatis Geologorum Poloniae; 2020, 90, 2; 99-123
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Hydrothermal fluids influence on the thermal evolution of the Stephanian sequence, the Sabero Coalfield (NW Spain)
Autorzy:: Botor, D.
Powiązania:: https://bibliotekanauki.pl/articles/184440.pdf
Data publikacji:: 2012
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Spain
Cantabrian Mountains
Sabero coalfield
Carboniferous
pull-apart basin
coalification
thermal history
maturity modelling
vitrinite reflectance
eroded overburden
Opis:: In the present study, the thermal history of the Late Carboniferous (Stephanian) coal-bearing sediments of the Sabero Coalfield has been reconstructed in order to elucidate coal rank. The Sabero Coalfield is located in a small intramontane coal-bearing basin along the Sabero-Gordón fault zone, one of the major E-W trending strike-slip fault systems of the southern part of the Cantabrian Zone (NW Spain). The total thickness of the Stephanian succession is in excess of 2,000 m, and is composed of siliclastic rocks and intercalated coal seams with tonsteins. Mean vitrinite reflectance values in the Stephanian rocks in the Sabero Coalfield are in the range from 0.61 to 3.14% Rr, but most values are in the range from 0.8 to 1.5% Rr (based on 84 samples). Average vitrinite reflectance gradient is high (0.73% Rr/km), which suggests high value of average paleogeothermal gradient (52°C/km). The maximum paleotemperatures calculated from vitrinite reflectance values for the Stephanian rocks range between 89°C (top of the Stephanian) and 195°C (bottom of the Stephanian). Coalification of the organic matter in the Stephanian rocks was achieved in the Early Permian, and was most likely related to several almost simultaneous related to magmatic and hydrothermal activity during high subsidence period in the pull-apart basin. The primary, burial-related maturity pattern, was probably slightly overprinted by fluid migration event, which is supposed to have occurred in Early Permian time.
Źródło:: Geology, Geophysics and Environment; 2012, 38, 4; 369-393
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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