Plate 1. Photomicrographs. 1. General view of foraminiferal-nannofossil chalk. Section 161-975B-33X-2, 3-4 cm. Scale bar is 0.1 mm. 2. Black (tachylitic) microlitic and lathwork volcanic lithic fragments. Section 975B-33X-3, 143-144 cm. Scale bar is 0.1 m

Plate 1. Photomicrographs. 1. General view of foraminiferal-nannofossil chalk. Section 161-975B-33X-2, 3-4 cm. Scale bar is 0.1 mm.