Parageneses of polyakovite-(Ce) in carbonatites and ultramafites of the Ilmen mountains (South Urals, Russia)

Popov V. A.

Zapiski RMO (Proceedings of the Russian Mineralogical Society). 2021. V. 150. N 6. P. 88-95

https://doi.org/10.31857/S086960552106006X

Language: Russian

Abstract

The mineralogical study of the polyakovite-(Ce) occurrence in the Ilmen Mountains (themSouth Urals, Russia) has led to discovery of numerous parageneses including accessory polyakovite-(Ce), aeschynite-(Ce), fergusonite-(Ce), monazite-(Ce), chromite, and other minerals. The alkaline ultramafic formation with carbonatites is represented there by richterite-phlogopite-forsterite, richterite-phlogopite, and phlogopite-richterite rocks, glimmerites and carbonatites, together with their pegmatite analogues.

Keywords: alkaline ultramafites, carbonatites, paragenesis, pegmatite, polyakovite-(Ce), monazite-(Ce), fergusonite-(Ce), aeshynite-(Ce), Ilmen Mountains