Plate P7. Vitrinite, pyrite, and oil inclusions. 4. T5842; Hole 1115C; 514.72 mbsf. Oil drops within siltstone. These oil drops are relatively rare in the sample suite. Some occurrences are probably contaminants, but these appear to be indigenous to the sample. Light paraffinic oils have this appearance in fluorescence mode (reflected light; field width = 0.22 mm; mean vitrinite reflectance = 0.29%).