Figure F1. Reconstruction of the Newfoundland–Iberia rift at Anomaly M0 (Newfoundland plate is fixed in present geographic coordinates), based on the reconstruction pole of Srivastava et al. (2000). Tectonic and other data are compiled from numerous sources (structural data from Ewing Cruise 00-07 in 2000 [Fig. F3] are not included). Ocean crust (center, shaded) is presumed to have formed beginning near Anomaly M3. South-to-north zipperlike opening would account for the observed splayed tectonic trends between the two margins and the northward-narrowing zone of ocean crust. On the Newfoundland side, the U reflection extends throughout the Newfoundland Basin and pinches out seaward near Anomaly M3. Ewing MCS/OBH/S transects across the Newfoundland margin (Fig. F3) are indicated by bold lines labeled with circled numbers. ODP Leg 210 drill sites are along Transect 2. F.Z. = fracture zone, T.Z. = transfer zone, A.P. = abyssal plain.