Figure F50. Magnetic susceptibility, natural gamma ray (NGR) activity, and thermal conductivity are shown along with the simplified lithostratigraphy of Site 1256; blue = nannofossil ooze; orange and yellow = clay, silt, or silty clay; and shades of purple = diatom-rich intervals. The NGR and magnetic susceptibility data have been smoothed by averaging over a 41-point (102.5 cm long) window and a 21-point (52.5 cm long) window, respectively. Green = negative susceptibility values.