Ontogenetic orientations to choose the formation of platinum-bearing mineralization in clinopyroxenite-dunite (Urals)

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Marco E. Ciriotti
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Iscritto il: ven 25 giu, 2004 11:31
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Ontogenetic orientations to choose the formation of platinum-bearing mineralization in clinopyroxenite-dunite (Urals)

Messaggio da Marco E. Ciriotti » mer 07 ago, 2019 14:01

Referenza:
▪ Kozlov, A.V., Stepanov, S.Y., Palamarchuk, R.S., Minibayev, A.M. (2019): Ontogenetic orientations to choose the model of the formation of platinum-bearing mineralization in zonal clinopyroxenite-dunite massifs of the Urals. Zapiski RMO, 148(2), 115-130.

Abstract:
Results of ontogenetic studies of the early paragenesis of ore minerals in zonal clinopyroxenite-dunite massifes of the Middle Urals are discussed. It is shown that the formation of these minerals occurs in the following order: iridosmium → chrome-spinel → laurite-erlichmanite → оsmiridium → isoferroplatinum. Revealed ontogenic features of ore phases are in good agreement with models suggesting the concentration of platinum group metals at the magmatic stage of evolution of the clinopyroxenite-dunite massif before display of the superimposed high-temperature plastic deformation.
Marco E. Ciriotti

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