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Geothermal conditions and crustal structure of the northwestern Carpathians
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 14th EAGE International Conference on Geoinformatics - Theoretical and Applied Aspects, May 2015, Volume 2015, p.1 - 5
Abstract
In the northwestern Carpathian region three geothermal zones have been revealed corresponding with main tectonic elements with different ages: late Proterozoic early – Paleozoic (low heat flow, 40–55 mW/m2), late Paleozoic – early Mesozoic (intermediate heat flow, 50–70 mW/m2), late Mesozoic – Cenozoic (high heat flow, 70–110 mW/m2). The analysis of heat flow data, crustal structure and 2D numerical geothermal modeling along two seismic profiles crossing the main Carpathian tectonic allow us to conclude the heat flow changes are due to variable mantle component of heat flow, feature of the tectonic evolution and structure of the crust. The mantle heat flow changes from 20 mW/m2 in the East European Platform to 70 mW/m2 in Pannonian Basin and crustal thickness decreases from 40–50 km to 22–30 km. High mantle heat flow in the Pannonian Basin was associated with astenosphere uplift 25–30 Ma ago.