a 2015

Paleogeothermal gradient reconstruction for the Carboniferous units in Upper Silesian Coal Basin, Czech Republic

GERŠLOVÁ, Eva; Marek GOLDBACH; Milan GERŠL a Petr SKUPIEN

Základní údaje

Originální název

Paleogeothermal gradient reconstruction for the Carboniferous units in Upper Silesian Coal Basin, Czech Republic

Autoři

GERŠLOVÁ, Eva; Marek GOLDBACH; Milan GERŠL a Petr SKUPIEN

Vydání

CETEG 2015 - 13th Meeting of the Central European Tectonic Groups, Kadaň, Czech Republic, 2015

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/15:00082753

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-7075-880-9

ISSN

Klíčová slova anglicky

Thermal Maturity Upper Silesian Basin Basin history reconstruction Petromod multi 1D aproach
Změněno: 18. 5. 2015 08:41, Mgr. Marek Goldbach, Ph.D.

Anotace

V originále

The deep boreholes in the Upper Silesian Basin provide valuable material for the study of coalification in relation to burial depth and temperature. The objective of this paper is to compare the data from 12 boreholes and evaluate the extent of expected burial and uplift. 295 new Rock Eval measurements were performed. The maximum pyrolytic temperature (Tmax) varies from 423 to 525 °C. The correlation of the Tmax and random vitrinite reflectance (Rr) demonstrated the linear increase of both parameters within the observed rank. Thus the Tmax could be used as a maturation parameter. A comparison of the curve inclination for vitrinite reflectance and maximum pyrolytic temperature indicated that the regional paleo-heat flow pattern was uniform during the period from the Visean to the Westhpalian. The observed regional differences in maturation patterns are linked to the tectonic features described in the area. Based on the results of the 1D model, the regional rank distribution can be correlated with an increased thickness in the missing units, rather than with changes in the geothermal gradients. The regional evaluation throughout the studied area reveals the burial depth of 1 800 to 3 000 m. The heat flow scenario used in the 1D model begins from 80 mW.m-2 during the Paleozoic decreasing to 52 mW.m-2. The following thermal and subsidence evolution did not change the thermal maturity pattern received during Carboniferous burial.