Figure 1. Regional bathymetric chart of the west Iberia Margin (contours in 500-m intervals, 1000-m contours in bold). Smaller numbers refer to previously drilled DSDP/ODP sites; larger, bold numbers refer to sites drilled during Leg 149. IB = Interior Basin, VDGS = Vasco da Gama Seamount, VS = Vigo Seamount, PS = Porto Seamount, LB = Lusitanian Basin, ES = Estremadura Spur.