Figure F48. Age-depth relationship for Site 1150, based on diatom (open circle) and nannofossil (open triangle) datums, and geomagnetic-reversal boundaries (open square). Numbers at the age control points correspond to datum events of Table T13. Curves of DSDP Sites 438 and 584 are modified after Niitsuma and Akiba (1986). Dashed lines show hiatuses or unconformities.