Figure F21. Close-up photograph of the Cretaceous/Paleogene (K/P) boundary in Holes 1262B and 1262C. Each transition (intervals 208-1262B-22H-4, 117–152 cm, and 208-1262C-13H-2, 52–81 cm) is marked by an irregular boundary between light gray-brown clay-bearing nannofossil ooze with foraminifers and an overlying red foraminifer-bearing nannofossil clay. This sequence grades upward into a brown nannofossil-bearing foraminifer-bearing clay that is moderately bioturbated. Microtectites are present in this reddish transition zone directly at the boundary.

Figure F21. Close-up photograph of the Cretaceous/Paleogene (K/P) boundary in Holes 1262B and 1262C. Each transition (intervals 208-1262B-22H-4, 117–152 cm, and 208-1262C-13H-2, 52–81 cm) is marked by an irregular boundary between light gray-brown clay-bearing nannofossil ooze with foraminifers and an overlying red foraminifer-bearing nannofossil clay. This sequence grades upward into a brown nannofossil-bearing foraminifer-bearing clay that is moderately bioturbated. Microtectites are present in this reddish transition zone directly at the boundary.