(Table 3) Average stable carbon isotopic compositions for aqueous low-molecular weight organic compounds in vent fluids from ODP Mound Field@en

The reported d13C for CO2 is the value calculated for the endmember hydrothermal vent fluid, assuming two-component mixing between a seawater endmember containing 2.33 mmol/kg CO2, with a d13C of -0.6‰ and the endmember vent fluid with the calculated CO2 concentration reported in Table 1 (http://doi.pangaea.de/10.1594/PANGAEA.710857).