Bystrinskoe - Bystrinsky, Verkhneildikansky, Medny Chainik, Yuzhno-Rodstvenny, Novo-Shirokinskoe

Zabaikalsky Kray, Russia

Main commodities: Cu Au Ag Fe
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The Bystrinskoe Cu-Au porphyry-skarn cluster in southern Siberia is located 90 km west of the Chinese border and ~360 km ESE of Chita in the Zabaikalsky Krai, and is ~130 km east of the Baley Gold Field and 70 km NE of the Bugdainsk porhyry Mo-W deposit (#Location: 51° 29' 54"N, 118° 33' 22"E).

The operation is expected to achieve pre-commissioning design capacity in 2021 to process ~10 mtpa of ore. The deposit is developed through open-pit mining at the Verkhneildikansky and Bystrinsky-2 mines, with the Medny Chainik and Yuzhno-Rodstvenny mines to be commissioned in 2030 (Nornickel Website, viewed December, 2020).

Mineralisation in this cluster occurs as porphyry style quartz-molybdenite and quartz-carbonate-sulphide veins and veinlets and as skarn type massive magnetite-sulphide, veinlets and disseminated Cu-Au-Fe. The skarns include appreciable tonnages of Cu bearing magnetite producing both Cu concentrates and saleable magnetite as iron ore. This mineralisation is associated with small alkaline (monzonitic) porphyry intrusions of the Jurassic Shakhtama intrusive complex, part of a plutonic-volcanic suite in Eastern Transbaikalia. The skarn ores are developed along the contacts of granitoids of this intrusive complex and Lower Cambrian limestone and dolostone country rocks of the Erguna Terrane (Kovalenker et al., 2016; Seltmann et al 2010).

The porphyry style mineralisation, which overprints the skarn alteration and mineralisation, forms wide, tabular, stockwork zones, with a long axis of over 1 km and traceable for at least 300 to 500 m downdip. The principal ore minerals are chalcopyrite, with minor arsenopyrite containing finely dispersed gold. Magnetite skarns are commonly locally enriched with boron, whilst weak tungsten, as scheelite (0.14 to 0.42% WO3) and molybdenum (0.054 to 0.23% Mo) mineralisation is locally present. The large Novo-Shirokinskoe gold-sulphide deposit is located 15 km from Bystrinskoe.

The declared mineral resource at the Bystrinskoe cluster, as reported on the Nornickel Website (viewed December, 2020) was:
  326 Mt @ 0.68% Cu, 0.86 g/t Au, 3.74 g/t Ag, 22% Fe;
  containing 2.24 Mt of Cu, 282 t of Au, 1218 t of Ag and 72 Mt of Fe as magnetite

The most recent source geological information used to prepare this summary was dated: 2016.    
This description is a summary from published sources, the chief of which are listed below.
© Copyright Porter GeoConsultancy Pty Ltd.   Unauthorised copying, reproduction, storage or dissemination prohibited.

  References & Additional Information

Porter GeoConsultancy Pty Ltd (PorterGeo) provides access to this database at no charge.   It is largely based on scientific papers and reports in the public domain, and was current when the sources consulted were published.   While PorterGeo endeavour to ensure the information was accurate at the time of compilation and subsequent updating, PorterGeo, its employees and servants:   i). do not warrant, or make any representation regarding the use, or results of the use of the information contained herein as to its correctness, accuracy, currency, or otherwise; and   ii). expressly disclaim all liability or responsibility to any person using the information or conclusions contained herein.

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