Figures F1-F11
Tables T1-T2

F1. Location of ODP Leg 170 drill sites off the Nicoya Peninsula, Costa Rica.

F2. Bathymetric map of the Middle American Trench and the lower continental slope off the Nicoya Peninsula, Costa Rica.

F3. Planktonic foraminiferal biostratigraphy of Cores 170-1039B-1H through 18X.

F4. Planktonic foraminiferal biostratigraphy of Cores 170-1043A-18X through 30X.

F5. Total numbers of planktonic foraminifers and the ratio of warm-water dwellers to the total assemblage in Cores 170-1039B-1H through 18X.

F6. The ratio of warm-water dwellers to the total assemblage and ratio of G. sacculifer in Cores 170-1039B-1H through 18X.

F7. Ratios of surface- and intermediate-water dwellers to the total assemblage in Cores 170-1039B-1H through 18X.

F8. Total numbers of planktonic foraminifers and the ratio of warm-water dwellers to the total assemblage in Cores 170-1043A-18X through 20X.

F9. The ratio of warm-water dwellers to the total assemblage and ratio of G. sacculifer in Cores 170-1043A-18X through 30X.

F10. Ratios of surface- and intermediate-water dwellers to the total assemblage in Cores 170-1043A-18X through 30X.

F11. Biochronologic correlation of Holes 1039B and 1043A. Ratio of warm-water planktonic foraminifers and G. sacculifer to the total assemblage are indicated.

Tables T1-T2

T1. Percentages of planktonic foraminifers in Samples 170-1039B-1H-CC through 18X-CC.

T2. Percentages of planktonic foraminifers in Samples 170-1043A-18X-2, 46-48 cm, through 30X-6, 46-48 cm.

Figures F1-F11
Tables T1-T2