Figure 3. Downcore distribution of total sulfur concentrations at Site 999 reported as weight percent on a carbonate-free basis to remove dilution effects. The total sulfur values are thought to represent pyrite in these samples. A schematic representation of the predicted distribution of pyrite sulfur for a steady-state diagenetic system has been included for comparison. This idealized profile is not based on parameters of the actual host sediment, so the general shape rather than the absolute concentrations is the most meaningful aspect for comparison.