Platinum-bearing chromitites in mafic-ultramafic intrusions such as the Bushveld Complex
are key repositories of strategically important metals for human society. Basaltic melts
saturated in chromite alone are crucial to their generation, but the origin of such melts is
controversial. One concept holds that they are produced by processes operating within the
magma chamber, whereas another argues that melts entering the chamber were already
saturated in chromite. Here we address the problem by examining the pressure-related …