Figure 10. Comparison of the diatom abundance index (0 = barren, 1 = trace, 2 = rare, 3 = few, 4 = common, and 5 = abundant) between Sites 1081 and 1082. Note similar pattern at both sites, with highest values in the late Pliocene. The hatched areas = periods of cold-water influence indicated by the presence of P. curvirostris and P. barboi.

Figure 10. Comparison of the diatom abundance index (0 = barren, 1 = trace, 2 = rare, 3 = few, 4 = common, and 5 = abundant) between Sites 1081 and 1082. Note similar pattern at both sites, with highest values in the late Pliocene. The hatched areas = periods of cold-water influence indicated by the presence of P. curvirostris and P. barboi.