Fig. 2: Carbon and oxygen isotopes.
From: Pervasive subduction zone devolatilization recycles CO2 into the forearc
The 211 isotope measurements of metamorphic carbonate minerals record a wide array of δ13C and δ18O values that differ from unaltered seafloor carbonate. Uncertainties of <0.1‰ (1σ) are smaller than plotted circles.
