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Liferovich R.P., Subbotin V.V., Pakhomovsky Ya.A., Lyalina M.F.
New genetic type of scandium mineralization in the iron-ore complex of the Kovdor massif
Abstract. Scandium mineralization of a new genetic type has been discovered in the baddeleyite-apatite-magnetite deposit related to the Kovdor alkaline-ultrabasic massif, Kola Peninsula, Russia. It is represented by altered dolomite carbonatites containing a new mineral, juonniite in mineralised caverns. Juonniite occurrences are confined to a linear reactivated fault, which intersects phoscorites and carbonatites. Metasomatism of phoscorites caused almost a two-fold enrichment in Sc in clinohumite-bearing units. Late hydrothermal solutions affected cataclastic clinohumite-bearing phoscorites along the fault zone and the subsequent dissolution of sulphides and Sc-bearing minerals (e.g.: forsterite, baddeleyite, pyrochlore group minerals, etc.) was accompanied by mobilisation of traces of Sc, most likely, in the form of carbonate and sulphate. Fluorapatite-bearing altered dolomite carbonatites with abundant cavities provided the necessary conditions for the precipitation of scandium in the form of a hydrous phosphate, juonniite.
Printed reference: New genetic type of scandium mineralization in the iron-ore complex of the Kovdor massif / R.P. Liferovich, V.V. Subbotin, Ya.A. Pakhomovsky, M.F. Lyalina // Vestnik of MSTU. 2000. V. 3, No 2. P. -.
Electronic reference: New genetic type of scandium mineralization in the iron-ore complex of the Kovdor massif / R.P. Liferovich, V.V. Subbotin, Ya.A. Pakhomovsky, M.F. Lyalina // Vestnik of MSTU. 2000. V. 3, No 2. P. -. URL: http://vestnik.mstu.edu.ru/v03_2_n07/articles/07_lifer.zip.
(In Russian, p.10, fig. 6, tables 2, ref 24, MS Word 95, WinZip)
