(Table 1) CO2 concentrations in rocks from DSDP Holes 417A,D and 418A, supplement to: Staudigel, Hubert; Hart, Stanley R; Schmincke, Hans-Ulrich; Smith, Brian M (1989): Cretaceous ocean crust at DSDP sites 417 and 418: Carbon uptake from weathering versus loss by magmatic outgassing. Geochimica et Cosmochimica Acta, 53(11), 3091-3094

Hubert Staudigel, Stanley R Hart, Hans-Ulrich Schmincke & Brian M Smith
Ocean crustal carbon uptake during seafloor alteration at DSDP Sites 417A, 417D, and 418A exceeds the estimated loss of carbon during magmatic ridge outgassing. If these sites are representative for oceanic crust in general, 2.2-2.9 x 10**12 moles of carbon are removed from the oceans per year as a net flux of carbon between the oceanic crust and seawater. Although most of this carbon occurs as calcium carbonate, this ocean crustal carbonate probably cannot be...
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