Fig. 3: Sc/Yb, U/Nb and δ18O compared with age.
From: Contemporaneous mobile- and stagnant-lid tectonics on the Hadean Earth
Plots of Sc/Yb, U/Nb and δ18O compared with age for Hadean and early-Archean zircons from the JH metasediments (blue dots) (this study) and BGSB (red dots)13. The horizontal grey bands in a and b are regions of CAS–OI overlap. The vertical grey band is the time of change points seen for the BGSB data. The percentage of pre-3.8-Ga zircons that have CAS sources (inset, dashed outline; Table 1) is much greater for JH than for BGSB.
