Figure F11. Ratio of C29 5α,14α,17α(H)20R sterane to C29 Δ4 and Δ5 sterenes, Site C0020. Data plotted by sample type. Inset displays data from Hokkaido (Amo et al., 2007) used to calculate lines for 22°, 24°, and 26°C/km geothermal gradient.
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