Figure F23. A. Site 1177 bulk density measurements. Lithostratigraphic Units I (upper Shikoku Basin facies), II (lower Shikoku Basin facies), III (Shikoku turbidite facies), and IV (volcaniclastic facies) are indicated. B. Gamma-ray attenuation (GRA) and mass/volume bulk density. C. Grain density. D. Porosity.