Figure F12. Records from Hole 1081A of (A) quartz concentrations, (B) the kaolinite/(kaolinite + smectite) (k/[k + s]) ratio, (C) kaolinite concentrations, (D) smectite concentrations, and (E) magnetic susceptibility vs. age. Glacial isotope Stages 2-56 from the SPECMAP timescale (2-22) (Imbrie et al., 1984) and Ruddiman et al., (1989) (22-56) are shaded.