Figure F18. Composite digital photograph of Core 198-1207B-44R-1 showing the lower Aptian OAE1a level, a Corg-rich claystone. Total reflectance is illustrated, along with values of three shipboard organic carbon determinations. TOC = total organic carbon.

Figure F18. Composite digital photograph of Core 198-1207B-44R-1 showing the lower Aptian OAE1a level, a C_org-rich claystone. Total reflectance is illustrated, along with values of three shipboard organic carbon determinations. TOC = total organic carbon.