Figure F65. Electrical resistivity measurements in Hole 1179D are shown with caliper data and lithostratigraphic units determined from Hole 1179C core descriptions. The expanded section shows the good correlation between natural radioactivity and resistivity measurements. Both measurements allow the identification of ash layers, which are marked by increases in both resistivity and natural gamma ray. IDPH = deep induction spherically focused resistivity, IMPH = medium induction spherically focused resistivity, SFLU = shallow induction spherically focused resistivity, MST = multisensor track, TD = total depth.