Figure 3. Cartoon paleogeographic restoration of the Western Iberian Margin during the J (M0) chron. A = crustal section across the Galicia Margin (after Boillot et al., in press, slightly modified; S = S reflector, M = Moho). B = crustal section of the Iberia Abyssal Plain, showing magnetic model from Whitmarsh et al. (1990), and transitional crust after Whitmarsh et al. (1993) (M1 and M3 = chrons). R2 and R3 = segments of peridotite ridge after Beslier et al. (1993). FEZ = Figueiro Fault Zone from Whitmarsh et al. (1990); FTF= Figueiro Transfer fault. M = position of the hypothetical marginal ridge. ODP Leg 103 sites, across the Galicia Margin, and ODP Leg 149 sites in the Iberia Abyssal Plain (IAP) are shown. The drawing is not to scale in a north-south direction. Note that the east-west section of the IAP has been shortened by 20% to compensate for post-Aptian extension produced by normal faulting.