Figure 1. Location map of the Bahamas showing Leg 166 site-survey lines. Sites 1003 through 1007 are located in area A. Sites 1008 and 1009 are located in area B.
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).
Figure 3. Lithostratigraphic summary of Leg 166 Bahamas Transect (Sites 1008 and 1009 drilled ~100 km to the south are not shown).
Figure 4. Age-correlation diagram of the Leg 166 Bahamas Transect (Sites 1008 and 1009 drilled ~100 km to the south are not shown).
Figure 5. Summary sedimentation rate diagram for Leg 166 sites. Data were obtained from calcareous nannofossils and planktonic foraminifers.
Figure 6. Seismic line showing the prograding sequences at the western margin of the GBB with the locations of the Bahamas Transects drilled during Leg 166. Sequence boundaries were labeled A-I, K-R. A SSB between P and Q was recognized during the cruise and was labeled P2. SSB R was not peneterated during Leg 166.
Figure 7. Same seismic line as Figure 6 with ages of sequence boundaries calculated using biostratigraphic datums and extrapolating sedimentation rates between datums. Despite the uncertainty of both the exact position of the biostratigraphic datums and the seismic resolution, the sequence boundaries show consistent ages along the seismic reflections.
Figure 8. Interstitial water profiles from Leg 166 sites illustrating downhole changes in Cl-.
Figure 9. Interstitial water profiles from Leg 166 sites illustrating downhole changes in Sr2+.
Figure 10. Contour map of the pore-water Cl- concentrations along the Leg 166 sites of the Bahamas Transect.