Figure F3. A. Diatom zonal scheme applied to strata of ODP Hole 1138A, 0-15 Ma (modified from Harwood and Maruyama, 1992). Brackets = first or last occurrence datums, and solid triangles = first common or last common occurrence datums. (Continued on next page.)

Figure F3. A. Diatom zonal scheme applied to strata of ODP Hole 1138A, 0-15 Ma (modified from Harwood and Maruyama, 1992). Brackets = first or last occurrence datums, and solid triangles = first common or last common occurrence datums.