Figure 7. Depth profiles of (A) Factor 2 (representing the coarser fraction of detritus) contribution to samples and volume percent of coarse fraction directly measured in selected samples (Tada et al., Chap. 25, this volume), (B) Factors 1 and 3 (representing the finer fraction of detritus from felsic and mafic sources, respectively) contribution to samples, and (C) the estimated mafic contribution to the finer grained fraction calculated as Factor 3/(Factor 1 + Factor 3). Sand layers and patches based on visual core description and observation on X-ray radiographs by Tada et al. (Chap. 25, this volume) are indicated by the shaded bands in the profiles. The marine isotope stage (MIS) boundary (top panel) is based on Kennett et al. (Chap. 21, this volume).