Figure F15. A. Magnetic susceptibility data for 0 to 260 mcd for Site 1210. The accurate correction factor for these raw instrument values is 0.68 x 10-6. Hole 1210B data are offset from Hole 1210A data by a constant (40 x 10-6). B. Gamma ray attenuation (GRA) bulk density data for 0 to 260 mcd for Site 1210. Hole 1210B data are offset from Hole 1210A data by a constant (0.3 g/cm3).