Plate P6. Suberinite and cutinite. 1. T5843; Hole 1115C; 562.86 mbsf. Telovitrinite and suberinite, with the suberinite showing positive alteration on prolonged irradiation with the fluorescence excitation beam. Vitrinite reflectance = 0.32% prior to alteration and 0.26% after 2 hr of irradiation. The left side of the field was not irradiated (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.32%). 2.T5809; Hole 1109D; 387.86 mbsf. Same as figure 1, but in fluorescence mode. Fluorescence from the suberinite is much stronger from the area where alteration has occurred (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.32%). 3. T5822; Hole 1114A; 64.72 mbsf. Telovitrinite with cell structure poorly defined but with cutinite well preserved. The cutinite is difficult to distinguish from desiccation fractures in white light, but is clearly visible in fluorescence mode (reflected light; field width = 0.22 mm; mean vitrinite reflectance = 0.33%). 4. T5822; Hole 1114A; 64.72 mbsf. Same as figure 3, but in fluorescence mode. Cutinite probably seen is section oblique to the surface of the wood. The section angle has emphasized small reentrants within the outer layers. Fluorescence of the cutinite is strong, and the form indicates that it is associated with wood rather than leaf tissues (reflected light; field width = 0.22 mm; mean vitrinite reflectance = 0.33%).

Plate P6. Suberinite and cutinite. 1. T5843; Hole 1115C; 562.86 mbsf. Telovitrinite and suberinite, with the suberinite showing positive alteration on prolonged irradiation with the fluorescence excitation beam. Vitrinite reflectance = 0.32% prior to alteration and 0.26% after 2 hr of irradiation. The left side of the field was not irradiated (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.32%). 2. T5809; Hole 1109D; 387.86 mbsf. Same as figure 1, but in fluorescence mode. Fluorescence from the suberinite is much stronger from the area where alteration has occurred (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.32%). 3. T5822; Hole 1114A; 64.72 mbsf. Telovitrinite with cell structure poorly defined but with cutinite well preserved. The cutinite is difficult to distinguish from desiccation fractures in white light, but is clearly visible in fluorescence mode (reflected light; field width = 0.22 mm; mean vitrinite reflectance = 0.33%). 4. T5822; Hole 1114A; 64.72 mbsf. Same as figure 3, but in fluorescence mode. Cutinite probably seen is section oblique to the surface of the wood. The section angle has emphasized small reentrants within the outer layers. Fluorescence of the cutinite is strong, and the form indicates that it is associated with wood rather than leaf tissues (reflected light; field width = 0.22 mm; mean vitrinite reflectance = 0.33%). Click on image or number to see enlargement.