Figure 42 | Table of Contents

Figure 41. Multiple sources (biogenic, thermogenic, and catagenic) and production mechanisms for the hydrocarbons encountered during Leg 190 were identified by plotting the methane (C1), Bernard ratios (C1/[C2+C3]), and sulfate profiles for the individual sites drilled during Leg 190. Note that depth scale is different for each plot. Vertical lines represent zones for thermogenic, mixed, and bacterial regions for the hydrocarbon profiles.

Figure 42 | Table of Contents