Extended Data Fig. 2: Comparison between C and O isotope compositions of carbonates in Ryugu, CI, and CM chondrites.
From: Carbonate record of temporal change in oxygen fugacity and gaseous species in asteroid Ryugu
CM chondrite data are taken from Telus et al. (ref. 38). The δ13C values of CM calcite are variable like Ryugu/CI calcite, but the highest reported value in CM calcite is lower than that of Ryugu/CI calcite. The δ13C and δ18O values of CM dolomite are also variable, whereas those of Ryugu/CI dolomite are more homogeneous. Data generated during this study are presented as mean values ± 2σ errors which are either external reproducibility (2 SD, N = 6–20 depending on the measurement sessions) of standard measurements or internal precision (2SE) of the data within single measurements, whichever is larger.
