There are two competing ideas of how platinum deposits formed: the first involves gravity-induced settling of crystals on the chamber floor, while the second idea implies that the crystals grow in situ, directly on the floor of the magmatic chamber.
Through examining the Merensky Reef of the Bushveld Complex in South Africa, which hosts the lion's share of the world's platinum and other noble metals, Dr Sofya Chistyakova from the School of Geosciences of the University of the Witwatersrand and her collaborators have established that the crystals grow in situ, with its high platinum status being attained while all its minerals were crystallising along the cooling margins of the magma chamber. Their research was published in a paper in Scientific Reports.
Features - Bushveld - Complex - Time - Merensky
One of the remarkable features of the Bushveld Complex is that at the time when the Merensky Reef was forming, some portions of its chamber floor were highly irregular due to...
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