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. 2002 Mar 26;99(7):4172–4177. doi: 10.1073/pnas.032095199

Figure 9.

Figure 9

Plots of δ13C and CO2 vs time for the combined inputs of carbon to the atmosphere from mass terrestrial mortality, CH4 hydrate decomposition, and volcanic CO2 degassing combined with an imbalance in the rates of burial and weathering of sedimentary organic matter.