Abstract

This paper provides a detailed geological description of the Serebryansky Kamen gabbro massif and copper–precious metal mineralization found for the first time within it. The first data on the distribution and localization of disseminated copper–precious metal mineralization in the central part of the massif have been obtained. It was found that copper sulfides (bornite, chalcopyrite, digenite, and chalcocite) are predominantly hosted in melanocratic taxitic varieties of amphibole gabbro. Elevated precious-metal concentrations were measured and precious-metal minerals were identified for the first time in gabbro enriched in sulfides in the northern part of the Ural platinum belt. The Pd–Pt–Fe–Cu intermetallic compounds, sulfide (vysotskite), tellurides (merenskyite, Pd-melonite, kotulskite), bismuthotellurides (michenerite), arsenides, platinum and palladium arsenotellurides (sperrylite, arsenopalladinite), and native gold were identified. Based on a geochemical survey, the resources of copper and precious metals in the Serebryansky Kamen gabbro massif are 760.1 kt of Cu and 97.1 t of precious metals, dominated by Au and Pd. The identified mineralized zones are comparable to the complex Volkovsky deposit in size, structure, and composition. A geological and genetic model is proposed, which can be widely used in prospecting for copper and precious metals in the gabbroic parts of dunite–clinopyroxenite–gabbro massifs.

中文翻译：

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北乌拉尔乌拉尔铂金带 Serebryansky Kamen 地块辉长岩中新发现的铜-贵金属

摘要

本文对 Serebryansky Kamen gabbro 地块和首次在其中发现的铜贵金属矿化提供了详细的地质描述。获得了地块中部浸染性铜贵金属矿化分布及定位的第一批资料。发现硫化铜（斑铜矿、黄铜矿、闪锌矿和辉铜矿）主要存在于闪石辉长岩的黑质共生品种中。在乌拉尔铂金带北部富集硫化物的辉长岩中，测量到贵金属浓度升高，并首次鉴定出贵金属矿​​物。Pd–Pt–Fe–Cu 金属间化合物、硫化物 (vysotskite)、碲化物 (merenskyite, Pd-melonite, kotulskite), bismuthotellurides (michenerite), 砷化物, 铂和钯碲碲化物（sperrylite、arsenopalladinite）和天然金被鉴定出来。经地球化学调查，Serebryansky Kamen辉长岩地块的铜和贵金属资源量为760.1 kt铜和97.1 t贵金属，以Au和Pd为主。已确定的矿化带在大小、结构和成分上与复杂的沃尔科夫斯基矿床相当。提出了一种地质成因模型，可广泛用于纯岩-斜辉石-辉长岩辉长岩部分的铜和贵金属找矿。以 Au 和 Pd 为主。已确定的矿化带在大小、结构和成分上与复杂的沃尔科夫斯基矿床相当。提出了一种地质成因模型，可广泛用于纯岩-斜辉石-辉长岩辉长岩部分的铜和贵金属找矿。以 Au 和 Pd 为主。已确定的矿化带在大小、结构和成分上与复杂的沃尔科夫斯基矿床相当。提出了一种地质成因模型，可广泛用于纯岩-斜辉石-辉长岩辉长岩部分的铜和贵金属找矿。