In 1988 a reflection seismic survey was carried out to study structure and development of the Aegir Ridge, an extinct spreading axis in the Norway Basin. A number of volcanolike structures were detected in the central ridge. The emerging lava flows dip away from their source in ridge strike. Perpendicular to ridge strike, lava flows dipped towards the ridge center. This pattern might represent a more general flow pattern at mid-ocean ridges. Distribution of the sediments indicate subsidence of the central ridge probably due to cooling after termination of spreading. -from Authors