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Bulk Humin - CLU-IN

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Modern Plant Carbon and Petroleum Carbon<br />

Radiocarbon Signatures<br />

14 CO2<br />

14 C<br />

PMC for plants = 100% (modern)<br />

• High Abundance of 14C from 14 Plants<br />

CO2 in atmosphere<br />

N 2<br />

petroleum<br />

PMC for petroleum = 0% (dead)<br />

• Low Abundance of 14C due 14C decay over time

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