Extended Data Fig. 3: Combination plot of δ13C-CO2 and δ13C-CH4 of LG runoff.
From: Greenland melt drives continuous export of methane from the ice-sheet bed
Points denote δ13C CO2-CH4 values for LG manual samples. Methanogenesis and microbial oxidation classification zones are derived and adapted from ref. 25.
