Figure 1. Map showing the location of seismic lines interpreted during this study and the Leg 149 (897-901) and DSDP Leg 48B (398) drilling sites. D = Discovery lines; JR = JOIDES Resolution lines; LG = Lusigal lines; SO = Sonne lines. The location of lines GP19 and GP20 is shown to demonstrate how interpretations in this study were linked to those of Groupe Galice (1979); extracts from these lines are shown in Figure 7 and Figure 10.