Figure 31 | Table of Contents

Figure 30. Lithologic log and selected properties of sediments at Site 1186. There was no coring from 0 to 697.4 mbsf. In the color column, L = the total reflectance and indicates lighter shades to the right; a and b quantify the hue as chromaticity, where a = the variation between green (negative) and red (positive) and b = the variation between blue (negative) and yellow (positive) (Blum, 1997). Component percentages are from observation of smear slides and thin sections. Higher values of magnetic susceptibility generally correlate with bands rich in volcanic ash (e.g., Core 192-1186A-13R) or with claystone (e.g., Core 192-1186A-26R and base of sedimentary sequence in Core 192-1186A-30R). Natural gamma-radiation intensity is from the Formation MicroScanner tool run; medium-penetration resistivity and caliper of borehole diameter are from the geophysical tool run.

Figure 31 | Table of Contents