1. Introduction 5
2. Observed sequences of oceanward dipping sub-acoustic basement reflectors 5
2.1. Norwegian continental margin 5
2.2. The continental margin off South Greenland and the Rockall Plateau 7
2.3. The continental margin of the Weddell Sea, Antarctica 10
2.4. Southwest Africa 13
2.5. Argo Abyssal Plain off Northwest Australia 17
2.6. East Coast of the United States 17
2.7. The continental margin off India 17
3. Origin of the wedges of oceanward dipping sub-acoustic basement
reflectors: a model 21
4. Paleoenvironmental significance and conclusions 23
5. References 25