Plate P2. Wood tissues preserved as vitrinite, variable textures, and reflectance. 1. T5848; Hole 1115C; 737.63 mbsf. Woody tissue preserved as vitrinite. Cell lumens are filled with humic material, but the degree of compression is small and some fine structure within the wood is preserved. This sample comes from the deeper part of the sections sampled but is still relatively immature in textural terms. The fractures (black) are the result of desiccation during and after preparation. (reflected light; field width = 0.22 mm; vitrinite reflectance = 0.37%). 2. T5848; Hole 1115C; 737.63 mbsf. Same as figure 1 but in fluorescence mode. Weak fluorescence from the cell contents but stronger fluorescence from some parts of the cell walls, possibly indicating that cellulose or a partial breakdown product of cellulose is still present. Some of the more diffuse brighter patches may represent some show-through from mounting resin below the sample—the vitrinite being relatively translucent (reflected light; field width = 0.22 mm; vitrinite reflectance = 0.37%). 3. T5817; Hole 1109D; 688.21 mbsf. Woody tissue of varying original composition preserved as vitrinite. Cell walls and cell content are both preserved and both show variations in reflectance, but most of the variation is within the cell contents. The variations are present within a single wood fragment and probably relate in large part to wood composition, but these may have been additionally affected by processes active during early diagenesis (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.54%-0.24%). 4. T5817; Hole 1109D; 688.21 mbsf. Woody tissue of varying original composition preserved as vitrinite. Marked variations are present within the telovitrinite, and these are largely due to differences in the original wood composition. Some of the higher reflecting telovitrinite has partial replacement of cell walls by pyrite (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.48% [upper layer] and 0.26% [lower layer]).

Plate P2. Wood tissues preserved as vitrinite, variable textures, and reflectance. 1. T5848; Hole 1115C; 737.63 mbsf. Woody tissue preserved as vitrinite. Cell lumens are filled with humic material, but the degree of compression is small and some fine structure within the wood is preserved. This sample comes from the deeper part of the sections sampled but is still relatively immature in textural terms. The fractures (black) are the result of desiccation during and after preparation. (reflected light; field width = 0.22 mm; vitrinite reflectance = 0.37%). 2. T5848; Hole 1115C; 737.63 mbsf. Same as figure 1 but in fluorescence mode. Weak fluorescence from the cell contents but stronger fluorescence from some parts of the cell walls, possibly indicating that cellulose or a partial breakdown product of cellulose is still present. Some of the more diffuse brighter patches may represent some show-through from mounting resin below the sample—the vitrinite being relatively translucent (reflected light; field width = 0.22 mm; vitrinite reflectance = 0.37%). 3. T5817; Hole 1109D; 688.21 mbsf. Woody tissue of varying original composition preserved as vitrinite. Cell walls and cell content are both preserved and both show variations in reflectance, but most of the variation is within the cell contents. The variations are present within a single wood fragment and probably relate in large part to wood composition, but these may have been additionally affected by processes active during early diagenesis (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.54%-0.24%). 4. T5817; Hole 1109D; 688.21 mbsf. Woody tissue of varying original composition preserved as vitrinite. Marked variations are present within the telovitrinite, and these are largely due to differences in the original wood composition. Some of the higher reflecting telovitrinite has partial replacement of cell walls by pyrite (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.48% [upper layer] and 0.26% [lower layer]). Click on image or number to see enlargement.