Figure F2. Summary diagram of rift events in the NewfoundlandIberia rift. Leg 210 drilling was at the boundary between the central and northern rift segments (black triangle at top of the figure). The green intervals show principal periods of rifting, and the vertically hatched intervals indicate hiatuses, most of which probably developed because of tectonic uplift associated with rifting. "E" at the bottom indicates evaporites deposited in shallow rift basins during the Late Triassic to Early Jurassic. Minor magmatism in the rift is documented south of Tagus Abyssal Plain in Gorringe Bank (Schärer et al., 2000) and on Galicia Bank (Schärer et al., 1995; Beard et al., 2002). The Southeast Newfoundland Ridge at the southern margin of Newfoundland Basin was a major locus of volcanism in the BarremianAptian (Tucholke and Ludwig, 1982). Open arrows = earliest proposed seafloor spreading, solid arrows = estimates for latest initiation of spreading. (Southern segment earliest = 145131 Ma [Anomaly M20M11] [Srivastava et al., 2000; Mauffret et al., 1989]; central segment earliest = 140 Ma [M17] [Srivastava et al., 2000], latest = 127125 Ma [M5M3] [Whitmarsh and Miles, 1995; Russell and Whitmarsh, 2003]; northern segment = ~122 Ma [M0] [Srivastava et al. 2000; Boillot et al., 1987]). Other data are compiled from Enachescu (1987), Tankard and Welsink (1987), Wilson (1988), Balkwill and Legall (1989), Murillas et al. (1990), Driscoll et al., (1995), Rasmussen et al. (1998), and Wilson et al. (2001).
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