Figure 2. Cross section through the Great Bahama Bank displaying the complicated internal architecture of the bank. Two nuclear banks, Andros and Bimini, coalesced by the infilling of an intraplatform seaway, the Straits of Andros. Progradation of the western margin of the platform during the Neogene expanded the bank more than 25 km into the Straits of Florida (from Eberli et al., 1994).