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Deep mantle

Enriched carbon source detected

Estimates of carbon in the deep mantle vary by more than an order of magnitude. Coupled volcanic CO2 emission data and magma supply rates reveal a carbon-rich mantle plume source region beneath Hawai'i with 40% more carbon than previous estimates.

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Figure 1: Methods for estimating Earth's deep carbon content.

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Correspondence to Peter H. Barry.

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Barry, P. Enriched carbon source detected. Nature Geosci 10, 625–627 (2017). https://doi.org/10.1038/ngeo3001

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