Introduction: Oxygen fugacity (fO2) is an important factor in planetary formation and evolution. Certain minerals or assemblages of minerals are stable only under certain fO2 conditions (at a constant T and P) and can be recorders of ambient fO2 during geologic processes. The best estimate of oxygen fugacity from mineral assemblages has implications, from large-scale models of planetary evoluti...

Introduction: The recent discovery of carbonaterich outcrops in the Nili Fossae region of Mars using data returned by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument [1] as well as indications of 2-3% carbonate in alkaline soils at the Phoenix landing site [2] have brought into question the hypothesis that much of martian history has been dominated by an acidic weath...

An accurate description of the effect extreme pressure and temperature on physical properties materials is required to understand structure composition mantle Earth similar planets. One such enstatite MgSiO 3 , which causes increased interest in investigating its behavior under intense dynamic loads. It proposed consider shock-wave loading as a mixture quartz oxides SiO 2 MgO periclase an equal...