Extended Data Fig. 10: The effects of varying αTiO2 on Ti-in-zircon temperature, magmatic fO2 and H2O content.
From: Earth’s early continental crust formed from wet and oxidizing arc magmas

This is illustrated using zircon and melt inclusion data for the Ig2E unit of the Bishop Tuff. The vertical dashed line and grey bar show the αTiO2 and standard error of the Bishop Tuff, according to the magnetite–ilmenite data12. It is apparent that varying αTiO2 values may introduce large (>50 °C) uncertainties in Ti-in-zircon temperature but do not notably affect the estimates of fO2 (ΔFMQ) or H2O content.