Figure F41. Detail of the gamma radiation, density, and porosity logs around the OAE1a black shale interval at 259.5 mbsf. HSGR = total spectral gamma ray, HCGR = computed gamma ray, HROM = high resolution bulk density, HALC = high resolution array porosity (limestone corrected).

Figure F41. Detail of the gamma radiation, density, and porosity logs around the OAE1a black shale interval at 259.5 mbsf. HSGR = total spectral gamma ray, HCGR = computed gamma ray, HROM = high resolution bulk density, HALC = high resolution array porosity (limestone corrected).