Figure 6. Downcore variation in the ratio of the red (650 nm) to blue (450 nm) wavelengths at Holes 1080A and 1080B. A nine- and five-point smoothing procedure was applied to the data sets for Holes 1080A and 1080B, respectively.

Figure 6. Downcore variation in the ratio of the red (650 nm) to blue (450 nm) wavelengths at Holes 1080A and 1080B. A nine- and five-point smoothing procedure was applied to the data sets for Holes 1080A and 1080B, respectively.