Abstract
The Black Sea basin is a deep depression within the Alpine folded belt. The total thickness of Cretaceous-Quaternary sediments in the central part reaches 14–18 km. The Earth's crust thickness is reduced to 22–28 km. The depression is featured by low heat flow. Minimal (< 30 mW/m 2) heat flow values are marked in the central part of the basin within the maximal sediments thickness. The effect of crustal structure, sedimentation, heat generation and near-floor temperature variation has been estimated based on numerical modelling of heat transfer conditions. The crust and upper mantle heat flow density and temperature have been calculated. The mantle heat flow density in the central part of the depression is 35–40 mW/m 2. The remaining high heat flow density is interpreted as lithosphere destruction and temperature perturbations during the Mesozoic and Cenozoic in connection with the opening of the back-arc Black Sea basin behind the western and East Pontides.
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