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Stable Isotope Compositions of Different Mineral Phases Found in a Natural CO2-reservoir (NW-Hungary): Implication for their Origin
Ist Teil von
Energy procedia, 2017-07, Vol.114, p.2812-2818
Ort / Verlag
Elsevier Ltd
Erscheinungsjahr
2017
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals
Beschreibungen/Notizen
Stable isotope systems provide exceptional insight into fluid-solid interactions occurring in the sub-surface. We provide detailed insight into the stable isotope distribution of carbonate minerals in a natural CO2 reservoir system from Mihályi-Répcelak area, NW-Hungary. Several types of measurements and calculations have been applied for the estimation of CO2 and H2O isotopic composition in equilibrium with dawsonite. The estimated δ13C of CO2 exhibit values around -4.5 to -2.6 ‰ overlapping with assumed magmatic values and the presently measured gas data confirming magmatic origin, whereas we may assume that the water present during carbonate formation likely had meteoric origin.