Carbon Isotopic Composition of Deep Carbon Gases in an Ombrogenous Peatland, Northwestern Ontario, Canada

Radiocarbon dating and carbon isotope analyses of deep peat and gases in a small ombrogenous peatland in northwestern Ontario reveals the presence of old gases at depth that are 1000–2000 yr younger than the enclosing peat. We suggest that the most likely explanation to account for this age discrepancy is the downward movement by advection of younger dissolved organic carbon for use by fermentation and methanogens bacteria. This study identifies a potentially large supply of old carbon gases in peatlands that should be considered in global carbon models of the terrestrial biosphere

Archaeology · Biosphere · Carbon cycle · Carbon dioxide · Carbon fibers · Dissolved organic carbon · Earth science · Ecosystem · Geography · Greenhouse gas · Isotopes of carbon · Peat · Physical geography · Radiocarbon dating · Total organic carbon · Chemistry · Coastal wetland ecosystem dynamics · Environmental Science · Geology and Paleoclimatology Research · Peatlands and Wetlands Ecology · Ecology · Environmental Chemistry · Geology · Oceanography · Paleontology

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