Figure F16. Magnetic susceptibility, gamma ray attenuation (GRA) bulk density, and lightness of the four lithologic units, Site 1236. Brown dots indicate position of volcanic ash layers. Black bars = thickness and position of nonpelagic grain-rich layers in Units I and II. Thick colored lines = 5-point averages. Note that 1.5 instrument units have been added to the original magnetic susceptibility data set (see Fig. F11) in order to exclude negative values for logarithmic scaling. upw. fining = upward fining. * = inferred basement.

Figure F16. Magnetic susceptibility, gamma ray attenuation (GRA) bulk density, and lightness of the four lithologic units, Site 1236. Brown dots indicate position of volcanic ash layers. Black bars = thickness and position of nonpelagic grain-rich layers in Units I and II. Thick colored lines = 5-point averages. Note that 1.5 instrument units have been added to the original magnetic susceptibility data set (see Fig. F11) in order to exclude negative values for logarithmic scaling. upw. fining = upward fining. * = inferred basement.