Figure F19. A. Magnetic susceptibility data for 0 to 260 mcd for Site 1209. Holes 1209B and 1209C are offset from Hole 1209A by a constant (40 x 10-6 and 80 x 10-6, respectively). The accurate correction factor for these raw instrument values is 0.68 x 10-5. B. GRA bulk density data for 0 to 260 mcd for Site 1209. Holes 1209B and 1209C are offset from Hole 1209A by a constant (0.3 and 0.6 g/cm3, respectively).