Palladogermanide PdGe2 from Sulfidized Anorthosite of the Yoko-Dovyren Intrusion: First Finding in Russia


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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.

作者简介

E. Spiridonov

Moscow State University

编辑信件的主要联系方式.
Email: ernstspiridon@gmail.com
俄罗斯联邦, Moscow, 119234

D. Orsoev

Geological Institute, Siberian Branch, Russian Academy
of Sciences

Email: ernstspiridon@gmail.com
俄罗斯联邦, Ulan-Ude, 670047

A. Ariskin

Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences

Email: ernstspiridon@gmail.com
俄罗斯联邦, Moscow, 119234; Moscow, 119991

E. Kislov

Geological Institute, Siberian Branch, Russian Academy
of Sciences

Email: ernstspiridon@gmail.com
俄罗斯联邦, Ulan-Ude, 670047

N. Korotaeva

Moscow State University

Email: ernstspiridon@gmail.com
俄罗斯联邦, Moscow, 119234

G. Nikolaev

Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences

Email: ernstspiridon@gmail.com
俄罗斯联邦, Moscow, 119991

V. Yapaskurt

Moscow State University

Email: ernstspiridon@gmail.com
俄罗斯联邦, Moscow, 119234

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