Figure 10. Depth profiles of mineral ratios for sediments from Unit II and the base of Unit I from Hole 975B. A. Quartz/calcite. B. Clay/calcite. C. Quartz/clay. The gap in the data around 306 mbsf in (C) corresponds to samples with no X-ray detectable clay minerals.

Figure 10. Depth profiles of mineral ratios for sediments from Unit II and the base of Unit I from Hole 975B. A. Quartz/calcite. B. Clay/calcite. C. Quartz/clay. The gap in the data around 306 mbsf in (C) corresponds to samples with no X-ray detectable clay minerals.