Figure F50. Color measurements at Site 1237 (spliced record) plotted in the a*-b* plane (upper left) and close ups of the L*-a* (upper right), L*-b* (lower left), and a*-b* (lower right) color planes. Measurements plot in two main regions in the a*-b* color plane: the generally greenish sediments of Unit I and Subunit IIA group in the second quadrant, whereas the reddish sediments of Subunit IIB cluster more tightly in the first quadrant. Three populations (IIB1, IIB2, and IIB3) can be distinguished within the red part of the color space.
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