Abstract
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.
Similar content being viewed by others
References
V. M. Kuznetsov, Z. A. Palymskaya, V. P. Puzyrev, et al., Kolyma, No. 3, 5–8 (1992).
N. A. Goryachev, B. F. Palymskii, A. N. Petrov, and I. M. Khasanov, Vestn. Sev.-Vost. Nauchn. Tsentra Dal’nevost. Otd. Ross. Akad. Nauk, No. 1, 3–15 (2016).
R. G. Kravtsova, A. S. Makshakov, and L. A. Pavlova, Russ. Geol. Geophys. 56 (10), 1367–1383 (2015).
R. G. Kravtsova, A. S. Makshakov, Yu. I. Tarasova, and Z. I. Kulikova, Izv. Sib. Otd. Sekts. Nauk Zemle Ross. Akad. Estestv. Nauk. Geol., Poiski Razved. Rudn. Mestorozhd., No. 2 (41), 11–22 (2012).
L. A. Pavlova and R. G. Kravtsova, Metody Ob’ekty Khim. Anal. 1 (2), 132–140 (2006).
L. A. Pavlova and L. F. Paradina, X-Ray Spectral Microanalysis and its Application in Mineralogy (Yakut Scientific Center Siberian Branch USSR Acad. Sci., Yakutsk, 1990) [in Russian].
V. I. Shpikerman and N. A. Goryachev, in Metallogeny of Folded Systems in Terms of Plates Tectonics (Ural Branch Russ. Acad. Sci., Yekaterinburg, 1996), pp. 64–78 [in Russian].
Geodynamics, Magmatism and Metallogeny of the Russia’s East, Ed. by A. I. Khanchuk (Dal’nauka, Vladivostok, 2006) [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.S. Makshakov, R.G. Kravtsova, N.A. Goryachev, G.A. Pal’yanova, L.A. Pavlova, 2017, published in Doklady Akademii Nauk, 2017, Vol. 476, No. 3, pp. 327–331.
Rights and permissions
About this article
Cite this article
Makshakov, A.S., Kravtsova, R.G., Goryachev, N.A. et al. First discovery of high-mercury silver in ores of the Rogovik gold–silver deposit (Northeastern Russia). Dokl. Earth Sc. 476, 1094–1098 (2017). https://doi.org/10.1134/S1028334X17090276
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1028334X17090276