Figure F1. Map showing the location of DSDP and ODP sites at the Carolina Rise, Blake Ridge, and Bahama Ridge. DSDP Leg 11 Sites 102, 103, and 104 (Hollister, Ewing, et al., 1972) and DSDP Leg 76 Site 533 (Sheridan, Gradstein, et al., 1983) are shown with triangles. ODP Leg 164 sites are shown with circles; Sites 994, 995, and 997 (Paull, Matsumoto, Wallace, et al., 1996) have relevance to this study. ODP Leg 172 sites, noted by diamonds, include those on the Carolina Rise (1054-1057), on the Blake Ridge (1058-1061), and on the Bahama Ridge (1062) (Keigwin, Rio, Acton, et al., 1998). Site 1063 is not plotted on the map but is located ~850 nmi east-northeast of the Blake Ridge on the northeast Bermuda Rise. The stippled areas encompass the region where bottom-simulating reflectors (BSRs) occur, indicative of the presence of gas hydrates within the sediments (Dillon and Paull, 1983).