Figure F26. Composite digital photographs showing the Eocene-Oligocene sequence at five sites and composite gamma ray attenuation (GRA) bulk density, magnetic susceptibility, and color reflectance data. The lithologic change from carbonate-rich to carbonate-poor sediments is evident as a two-step decrease in GRA density and an increase in susceptibility at Site 1218.

Figure F26. Composite digital photographs showing the Eocene-Oligocene sequence at five sites and composite gamma ray attenuation (GRA) bulk density, magnetic susceptibility, and color reflectance data. The lithologic change from carbonate-rich to carbonate-poor sediments is evident as a two-step decrease in GRA density and an increase in susceptibility at Site 1218.