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GEOREF RECORD

Low-temperature hydrothermal alteration of a rare-metal rich quartz-epidote metasomatite from the El'ozero Deposit, Kola Peninsula, Russia

B. Baginski, D. Zozulya, R. Macdonald, P. M. Kartashov and P. Dzierzanowski
Low-temperature hydrothermal alteration of a rare-metal rich quartz-epidote metasomatite from the El'ozero Deposit, Kola Peninsula, Russia
European Journal of Mineralogy (May 2016) 28 (4): 789-810

Abstract

The Keivy peralkaline granite complex, Kola Peninsula, Russia, is the only Archaean A-type granite known in the world. It contains numerous rare-metal occurrences, formed by a complex sequence of magmatic, late magmatic and hydrothermal processes acting on several different host lithologies. During fluid-induced interaction of a peralkaline granite with basic host rocks in the El'ozero occurrence, chevkinite-(Ce), thorite, fergusonite-(Y) and zircon were formed in a rare-metal rich zone within a quartz-epidote metasomatite. These minerals were then altered by lower-temperature fluids to complex assemblages containing ferriallanite-allanite-(Ce), gadolinite-group minerals, titanite, ilmenite, thorite and Nb,Y-oxides. The sequence of alteration events is used to comment on the nature and composition of the fluids involved in the low-temperature alteration of the host metasomatite. It is inferred that the hydrothermal fluids were alkaline, with significant, but varying, amounts of F, CO (sub 2) and S.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 28
Serial Issue: 4
Title: Low-temperature hydrothermal alteration of a rare-metal rich quartz-epidote metasomatite from the El'ozero Deposit, Kola Peninsula, Russia
Affiliation: University of Warsaw, Institute of Geochemistry, Mineralogy and Petrology, Warsaw, Poland
Pages: 789-810
Published: 20160512
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Germany
References: 69
Accession Number: 2016-085319
Categories: Igneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 8 tables, geol. sketch map
N67°30'00" - N67°30'00", E36°49'60" - E36°49'60"
Secondary Affiliation: Russian Academy of Sciences, Geological Institute, RUS, Russian FederationRussian Academy of Sciences, Institute of Ore Deposits, RUS, Russian Federation
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2022, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201641
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