A. Souche, M. Dabrowski and T. B. Andersen Modeling thermal convection in supradetachment basins: example from western Norway Geofluids 14
Thermal convection is expected in siliciclastic supra-detachment basins as a transient process during the exhumation of warmer footwalls. The cooling induced by the groundwater flow may locally reach −80°C to a depth of about 5 km in a model used for the Devonian basins of western Norway. Sedimentary layering formed by sand- and siltstone strata does not systematically inhibit the flow at the scale of the basin if the fluid can channelize upward along a detachment fault/shear zone.
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