Extended Data Fig. 9: Geochemistry of quartz-bearing clasts.
From: Evidence for pre-Noachian granitic rocks on Mars from quartz in meteorite NWA 7533
Geochemical diagrams comparing the composition of the quartz-bearing clasts with other lithic clasts in the NWA 7533 (and paired meteorites) breccia6,7,8, and terrestrial rocks like the Archean TTGs36, the Acasta gneiss and Idiwhaa tonalite44. (a) Na2O/K2O versus SiO2, (b) FeO versus MgO, (c) FeO versus SiO2.
