First discovery of high-mercury silver in ores of the Rogovik gold–silver deposit (Northeastern Russia)
- Autores: Makshakov A.1, Kravtsova R.1, Goryachev N.1,2, Pal’yanova G.3, Pavlova L.1
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Afiliações:
- Vinogradov Institute of Geochemistry, Siberian Branch
- Northeastern Integrated Research Institute, Far East Branch
- Sobolev Institute of Geology and Mineralogy, Siberian Branch
- Edição: Volume 476, Nº 1 (2017)
- Páginas: 1094-1098
- Seção: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/190908
- DOI: https://doi.org/10.1134/S1028334X17090276
- ID: 190908
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Resumo
New data on mercurial mineralization are presented, and a detailed characteristic is given for the first discovery of mercurous silver in ores of the Rogovik gold–silver deposit (the Omsukchan trough, Northeastern Russia). It was found that native silver in the examined ores occurs as finely-dispersed inclusions in quartz filling microcracks and interstitions. It also occurs in associations with kustelite, Ag sulfosalts and selenides, selenitic acanthite, and argyrodite. The mercury admixture varies from “not detected” in the central parts of grains to 0.22–1.70 wt % along the edges, or, in independent grains, to the appearance of Ag amalgams containing 10.20–24.61 wt % of Hg. The xenomorph form of grains of 50 μm or less in size prevails. It is assumed that the appearance of mercurial mineralization is caused by the superposition of products of the young Hg-bearing Dogda–Erikit belt upon the more ancient Ag-bearing Omsukchan trough.
Sobre autores
A. Makshakov
Vinogradov Institute of Geochemistry, Siberian Branch
Autor responsável pela correspondência
Email: artem_m@mail.ru
Rússia, Irkutsk, 650033
R. Kravtsova
Vinogradov Institute of Geochemistry, Siberian Branch
Email: artem_m@mail.ru
Rússia, Irkutsk, 650033
N. Goryachev
Vinogradov Institute of Geochemistry, Siberian Branch; Northeastern Integrated Research Institute, Far East Branch
Email: artem_m@mail.ru
Rússia, Irkutsk, 650033; Magadan, 685000
G. Pal’yanova
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: artem_m@mail.ru
Rússia, Novosibirsk, 630090
L. Pavlova
Vinogradov Institute of Geochemistry, Siberian Branch
Email: artem_m@mail.ru
Rússia, Irkutsk, 650033