首页|Platinum-group element concentrations of orangeite dykes intersecting the western limb of the Bushveld Complex
Platinum-group element concentrations of orangeite dykes intersecting the western limb of the Bushveld Complex
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Recent studies have demonstrated that the platinum-group elements (PGE) may be mobilised in the lithospheric mantle via methods other than traditional partial melting (e.g. mobilisation by supercritical CO_2 fluids, physical entrainment) which could have an important role in the metal budget of exotic, mantle-derived melts (e.g. orangeites). These processes may even play a role in forming parental magmas of deposits associated with large igneous provinces (LIPs).In this study we assess the PGE systematics of a suite of potassic-ultramafic orangeite dykes that formed by very low degree partial melting of a meta-somatically enriched sub-continental lithospheric mantle (SCLM) source, residing towards the base of the Kaapvaal Craton.
Charlie Compton-Jones、Hannah S. R. Hughes、lain McDonald
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Camborne School of Mines, College of Engineering, Mathematics & Physical Sciences, University of Exeter, Penryn, TRIO 9FE, UK
School of Earth and Ocean Sciences, Cardiff University, Main Building, Cardiff, CF10 3AT, UK
2022
Transactions of the Institutions of Mining and Metallurgy