Fig. 3 | Nature Communications

Fig. 3

From: Reduced and unstratified crust in CV chondrite parent body

Fig. 3

Silica activity vs. oxygen fugacity plot of stable phases in the system Ca-Fe-Si-O at a 300 °C and b 500 °C at an indicative pressure of 2000 bar. Kirschsteinite is stable for T > 450 °C, relatively low silica activity and in IM-buffered conditions. Andradite is stable both in oxidative and reductive condition depending the temperature (stable in IM-buffered condition for T < 350 °C)

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