Abstract
High-resolution (sparker) seismic profiles reveal evidence for glaciation of the outer part of the northern Hebrides and West Shetland shelves. Submarine end-moraines suggest glacial ice which locally extended out to the shelfbreak. Seismic stratigraphic analysis of the glacial succession suggests that the moraines on the northern Hebrides Shelf are older than those developed on the West Shetland Shelf. Whist the stratigraphic evidence indicates at least two phases of widespread outer shelf glaciation, the timing of these events remains uncertain.