Abstract
The results of study of the composition of gold from conglobreccias in the basement of the Lower Paleozoic terrigenous sequence of the Polar Urals (Malaya Kara River) are presented. Three gold types distinct in chemical composition were identified. A significant part of the gold contains a high (up to 23 wt %) amount of copper, the distribution of which (increase from center to rim) in the grains is opposite to that in gold from the terrigenous Lower Paleozoic rocks of the northern Urals. It is suggested that cuprous gold is a result of destruction of the Late Cambrian serpentinites and subsequent hydrothermal reworking of Au-bearing terrigenous sequences.
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Original Russian Text © N.Yu. Nikulova, V.N. Filippov, I.V. Shvetsova, 2014, published in Doklady Akademii Nauk, 2014, Vol. 456, No. 4, pp. 457–460.
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Nikulova, N.Y., Filippov, V.N. & Shvetsova, I.V. The first find of cuprous gold in the Lower Paleozoic psephites of the Northern Urals. Dokl. Earth Sc. 456, 655–658 (2014). https://doi.org/10.1134/S1028334X14060191
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DOI: https://doi.org/10.1134/S1028334X14060191