Email this article Palladogermanide Pd2Ge from sulfidized anorthosite of the Yoko-Dovyren intrusion: first finding in Russia
- Authors: Spiridonov E.M.1, Orsoev D.A.2, Ariskin A.A.1,3, Kislov E.V.2, Korotaeva N.N.1, Nikolaev G.S.3, Yapaskurt V.O.1
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Affiliations:
- Lomonosov Moscow State University
- Geological Institute, Siberian Branch of the Russian Academy of Sciences
- Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Science
- Issue: Vol 485, No 6 (2019)
- Pages: 741-744
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/14452
- DOI: https://doi.org/10.31857/S0869-56524856741-744
- ID: 14452
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Abstract
The Yoko-Dovyren ultramafic-mafic layered intrusion includes the Baikal deposit of Cu-Ni sulfide ores with Pt-Pd mineralization in the bottom part, and “horizons” and pockets of low-sulfide ores with Pt-Pd mineralization at the upper levels of the section. The highest concentration of Pd, Pt, Au, Ag, Hg, and Cd, as well as the widest variability in the noble-metal minerals, is typical of the vein-like bodies of anorthosite and pegmatoid anorthosite in the upper part of the critical horizon at the boundary between troctolite and the overlying gabbronorite. Most of the noble-metal minerals are the postmagmatic pneumatolytic (fluid-metasomatic) phases. Among them are palladogermanide with 19.8 wt % Ge, paolovite with 8.1% Ge, and zvyagintsevite with 0.55% Ge. The composition of palladogermanide is Pd2.03(Ge0.80As0.15Bi0.02)0.97; Ge is significantly replaced with As in this phase, which is typical of endogenic Ge minerals.
About the authors
E. M. Spiridonov
Lomonosov Moscow State University
Author for correspondence.
Email: ernstspiridon@gmail.com
Russian Federation, 1, Leninskie gory, Moscow, 119991
D. A. Orsoev
Geological Institute, Siberian Branch of the Russian Academy of Sciences
Email: ernstspiridon@gmail.com
Russian Federation, 6A, Sakhyanova street, Ulan-Ude, 670047
A. A. Ariskin
Lomonosov Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Science
Email: ernstspiridon@gmail.com
Russian Federation, 1, Leninskie gory, Moscow, 119991; 19, Kosygin street, Moscow, 119991
E. V. Kislov
Geological Institute, Siberian Branch of the Russian Academy of Sciences
Email: ernstspiridon@gmail.com
Russian Federation, 6A, Sakhyanova street, Ulan-Ude, 670047
N. N. Korotaeva
Lomonosov Moscow State University
Email: ernstspiridon@gmail.com
Russian Federation, 1, Leninskie gory, Moscow, 119991
G. S. Nikolaev
Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Science
Email: ernstspiridon@gmail.com
Russian Federation, 19, Kosygin street, Moscow, 119991
V. O. Yapaskurt
Lomonosov Moscow State University
Email: ernstspiridon@gmail.com
Russian Federation, 1, Leninskie gory, Moscow, 119991
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