Lower carboniferous fractured carbonates of the Campine Basin (NE-Belgium) as potential geothermal reservoir: age and origin of open carbonate veins

Within the Lower Carboniferous limestones in the boreholes of Poederlee, Heibaart and Turnhout (Campine Basin, NE-Belgium), open veins partially cemented by calcite and dolomite are considered important with regard to the geothermal reservoir potential of these limestones. Based on a detailed petrographic analysis, stable carbon and oxygen as well as clumped Δ47 isotope analysis and U/Pb age dating, the formation conditions of these veins have been reconstructed and were placed in the geodynamic evolution of the sedimentary basin. All host rocks are recrystallized, and the open carbonate vein... Mehr ...