Element mapping the Merensky Reef of the Bushveld Complex

The Merensky Reef hosts one of the largest PGE resources globally. It has been exploited for nearly 100?years, yet its origin remains unresolved. In present study, we characterised eight samples reef at four localities in western Bushveld Complex using micro-X-ray fluorescence and field emission scanning electron microscopy. Our results indicate that formed through a range diverse processes. Textures exhibited by chromite grains base are consistent with supercooling situ growth. local thickening chromitite layers within troughs floor rocks is most readily explained granular flow. Annealing deformation textures pyroxenes pegmatoid bear testament to recrystallisation deformation. footwall contain disseminations rich sulphides as well olivine peritectic reaction rims along their upper margins suggesting reactive downward flow silicate sulphide melts. Olivine-hosted melt inclusions containing Cl-rich apatite, sodic plagioclase, phlogopite suggest presence highly evolved, volatile-rich Pervasive reverse zonation cumulus plagioclase indicates dissolution or partial melting possibly triggered flux heat, acidic fluids, hydrous melt. Together, these data combination magmatic, hydrodynamic hydromagmatic