Figure F8. Lithostratigraphy and selected lithologic and wireline log properties of sediments at Site 1186. Depths are in meters below seafloor (mbsf). There was no coring from 0 to 697.4 mbsf. High values of the lightness variable "L" are light-colored sediment in the L*a*b system (Blum, 1997), but many of the spikes to darker colors are caused by gaps among cored pieces or by other artifacts. The a-axis of chromaticity in the L*a*b color scheme shows variation between green (low values) and red (high values), and the b-axis shows variation between blue (low values) and yellow (high values). 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). Natural gamma radiation intensity is from the FMS tool run, and medium-penetration resistivity and caliper of borehole diameter are from the geophysical tool run (see "Downhole Measurements"). A key to the graphic lithology is on Fig. F4 in the "Explanatory Notes" chapter.