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Figure F3. Downcore profiles of methane and ethane concentration, C₁/C₂₊ ratios, isotopic compositions (δ¹³C_CH4, δD_CH4, and δ¹³C_CO2), and conversion ratio in void gas at (A) Site U1412 and (B) Site U1413. Red dashed lines represent lithostratigraphic unit boundaries. Methane and ethane concentration and C₁/C₂₊ ratios are onboard data.

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