Abstract
The Escarpment is re-interpreted as the buried feather-edge of a thick pile of early Eocene flood basalts, overlying a thinner but more widespread layer of basalts of late Palaeocene age. The Escarpment does not, therefore, define the continent-ocean boundary in the southern Norwegian Sea. In the Faeroe-Shetland Trough and More Basin the basalts overlie several kilometres of sediments ranging in age from Palaeocene to at least as old as early Cretaceous, resting in turn on thin crust, with the Moho at around 15 km. The continent-ocean boundary north of the Faeroes underlies a belt of north-dipping ‘smooth’ intra-basalt reflections seen on multichannel reflection data, which is interpreted as oceanic layer 2, formed during subaerial spreading immediately preceding anomaly 24 time.
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