Figure F4. Close-up digital photograph of ash layer within the nannofossil ooze (Unit I; interval 199-1217A-4H-6, 22-61 cm). The ash layer has a sharp lower contact with the nannofossil ooze and bioturbated upper contact.

Figure F4. Close-up digital photograph of ash layer within the nannofossil ooze (Unit I; interval 199-1217A-4H-6, 22-61 cm). The ash layer has a sharp lower contact with the nannofossil ooze and bioturbated upper contact.