Figure F14. Measured (dots) and predicted (shaded lines) shipboard (A) carbonate and (B) total organic carbon (TOC). Predicted values are calculated by multiple linear regressions of shipboard reflectance data and geochemical measurements. Correlation coefficients are r2 = ~0.7 for carbonate and r2 = ~0.8 for TOC. One measured TOC value with C/N = 18.8 (presumably of terrestrial origin) was not included in the TOC regression.

Figure F14. Measured (dots) and predicted (shaded lines) shipboard (A) carbonate and (B) total organic carbon (TOC). Predicted values are calculated by multiple linear regressions of shipboard reflectance data and geochemical measurements. Correlation coefficients are r² = ~0.7 for carbonate and r² = ~0.8 for TOC. One measured TOC value with C/N = 18.8 (presumably of terrestrial origin) was not included in the TOC regression.