Abstract

Marine geophysical data on the continental slope west of Angola, Africa, indicate a large (50,000 km2) diapir field. Heat-flow values on the crests of the diapiric structures are systematically 2 to 3 times larger than those measured between these structures. A steady-state model of thermal conductivity contrasts, based on a detailed survey over the diapirs, strongly suggests that the cores of the diapirs are salt.

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