δ13C

In geochemistry, paleoclimatology and paleoceanography δ13C (pronounced 'delta c thirteen') is an isotopic signature, a measure of the ratio of stable isotopes 13C : 12C, reported in parts per thousand (per mil, ‰). In geochemistry, paleoclimatology and paleoceanography δ13C (pronounced 'delta c thirteen') is an isotopic signature, a measure of the ratio of stable isotopes 13C : 12C, reported in parts per thousand (per mil, ‰).