Young organic matter as a source of carbon dioxide outgassing from Amazonian rivers

doi:doi:10.1038/nature03880

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Young organic matter as a source of carbon dioxide outgassing from Amazonian rivers

Emilio Mayorga, Anthony K. Aufdenkampe, Caroline A. Masiello, Alex V. Krusche, John I. Hedges, Paul D. Quay, Jeffrey E. Richey & Thomas A. Brown

Nature 436, 538-541(28 July 2005)

doi:10.1038/nature03880

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Supplementary Notes

This file includes the Supplementary Discussion, which addresses the use of delta ¹³C of CO₂ instead of delta ¹³C-DIC, organic carbon sources, and the influence of carbonate weathering. Three Supplementary Tables list the isotopic and associated data presented in this study, and Supplementary Figure S1 describes the dominant weathering regime at each site.