A continous seismic and magnetic profile across the Norwegian Continental Shelf and Vøring Plateau.

Abstract

The upper part of the continental slope in the Storegga region dips at approximately 30\u00B0 and from the foot of this feature an undulating surface continues to the base of the slope. In some places these undulations have a sinusoidal form which diminishes in amplitude with depth. The lower part of the continental slope consists of a convex from approximately 200 m high, which is thought to have developed along the undulating surface by repeated slumping of unconsolidated material from the shelf edge. A very shallow crystalline basement exists on the outer part of the continental rise, while beneath the abyssal plain a layered structure is indicated. The south-western part of the Vøring Plateau is bounded by an escarpment. The plateau itself consists of layered sediments with an observed maximum thickness of 1.7 km and is assumed to be Cenozoic in age.