Figure F30. Preliminary magnetostratigraphic interpretation. Inclination data after demagnetization at 15 mT are shown for Holes 1263A, 1263B, and 1263C. Data within 50 cm of a core top and 5 cm of section ends are not shown. Core breaks are denoted by green squares. Black rectangles = normal polarity, white = reversed polarity, and shaded = uncertain polarity. X = intervals with no core recovery. A. 0–75 mcd. B. 65–150 mcd. O/M = Oligocene/Miocene boundary. C. 140–225 mcd. D. 115–320 mcd. P/E = Paleocene/Eocene boundary.