Author:Grantham, GH; Thomas, RJ; Eglington, BM; Debruin, D; Atanasov, A; Evans, MJDate:1993Olivine-plagioclase and phlogopite-plagioclase coronas have been identified from olivine melanorites of the mid- to late Proterozoic Equeefa Suite in southern Natal, South Africa. Olivine, in contact with plagioclase, is mantled by a shell ...Read more