Extended Data Fig. 1: Plot of ε178Hfcorr versus ε149Sm for Ryugu and carbonaceous chondrite samples.
From: Late fluid flow in a primitive asteroid revealed by Lu–Hf isotopes in Ryugu
The ε178Hfcorr values were calculated from measured ε180Hf and ε178Hf values using equation (4). The ε149Sm values are from ref. 35 Error ellipses represent the 95% confidence intervals. Also shown are predicted isotopic variations at different neutron fluence conditions. The dashed and dotted lines are loci of equal neutron fluences of thermal (Φ) and epithermal (Θ) neutrons, respectively.
