Selenium in Volcanogenic Massive Sulfide Ores
- Authors: Vikent’ev I.V.1, Belogub E.V.2, Moloshag V.P.3, Eremin N.I.1,3
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Affiliations:
- Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
- Institute of Mineralogy, Ural Branch, Russian Academy of Sciences
- Department of Geology, Moscow State University
- Issue: Vol 484, No 1 (2019)
- Pages: 40-44
- Section: Geology
- URL: https://journals.rcsi.science/1028-334X/article/view/194510
- DOI: https://doi.org/10.1134/S1028334X19010197
- ID: 194510
Cite item
Abstract
This paper describes the Se proper minerals first identified in the primary ores in Uralian volcanogenic massive sulfide (VMS) deposits. The investigation was carried out by instrumental neutron activation analysis of bulk ore samples and the mineral monofractions and also by local analysis methods: LA-ICP-MS, electron microprobe analysis, and analytical electron microscopy. СSe reaches 977 ppm in the Uralian VMS ores. A significant positive correlation is characteristic for Se with Te, S, Fe, Co, Mo, Hg, and Bi. Se is concentrated in major sulfides, mainly in pyrite (73 ppm), chalcopyrite (49 ppm), and pyrrhotite (48 ppm). Sphalerite commonly contains <10 ppm Se. The Se content is high (up to 1–3 wt %) in secondary and rare minerals of the massive sulfide ores (mainly Pb, Te, and Bi compounds): tetradymite, galena, tellurobismuthite, altaite, and wittichenite. In the ores, the Se proper minerals occur as kawazulite, clausthalite, and galena–clausthalite Pb(Se,S), and also as micron inclusions with (Ag,Cu)2(Se,S); (Ag,Pb)3(Te,Se)S; and (Ag,Pb)2(S,Se) compositions.
About the authors
I. V. Vikent’ev
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences
Author for correspondence.
Email: viken@igem.ru
Russian Federation, Moscow, 119017
E. V. Belogub
Institute of Mineralogy, Ural Branch, Russian Academyof Sciences
Email: viken@igem.ru
Russian Federation, Miass, Chelyabinsk оblast, 456317
V. P. Moloshag
Department of Geology, Moscow State University
Email: viken@igem.ru
Russian Federation, Moscow, 119991
N. I. Eremin
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences; Department of Geology, Moscow State University
Email: viken@igem.ru
Russian Federation, Moscow, 119017; Moscow, 119991