Nazarovskoye Deposit

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Nazarovskoye deposit has a status of gold-sulphide-zinc deposit.

License UDE Nr 01220 BE for exploration and extraction of gold-sulphide-zinc ore of Nazarovskoye deposit was issued in October 2005 for a period ending 2025.

Nazarovskoye deposit is located in Yeravninsky district of the Republic of Buryatia, 170 km north of  Mogzon railway station, 60 km from Sosnovo-Ozersk district centre, 35 km from the Ulan-Ude – Romanovka – Chita highway and 4 km from Ozernoye deposit.

Nazarovskoye deposit is located in the territory of Ozerninsky ore cluster. It is associated with the zone of Nazarovsky fault and exocontact  of Paleozoic granodiorites  massif transecting Lower Cambrian volcanogenic-sedimentary formations.

Five gold-sulphide-zinc ore bodies have been identified within the deposit. The largest in size and reserves (~80-90%) are three. They are represented by the lense-tabular formations with a steep pitch (60-700). Ore bodies are estimated as 300-750m along the strike and 150-300 m downdip. Average ore bodies thickness throughout the deposit amounts to 3.5 m. Gold distribution in ore bodies is random, the grades vary widely and reach some tens gm per ton.

Approved reserves of the gold-sulphide-zinc ore (Protocol Nr 18 of the Buryat Territorial Reserves Committee (BurTKZ) of 9 April 2002)

 

Ledge ore

 

Gold, t

Zinc, kt

Silver, t

С1 Category

-

170,5

-

Grade

-

7%

-

С2 Category

7,5

214,0

270

Grade

1,5 г/т

7,86%

52,4 г/т

 

Prognostic resources

Р1 Category

3,8

174

161

Р2 Category

-

-

-

Inferred reserves/resources (2007-2009 geological prospecting)

 

Ledge + oxide ore

 

Gold, t

Zinc, kt

Silver, t

С1 + С2 Category

~10

~400

200-300

Grade

2,0 g/t

7-8%

30-50 g/t

 

Prognostic resources

Р1 + Р2 Category

6-7

300

400

Projected commercial output

Zinc concentrate

Dore alloy

Zinc grade (Zn)

Zinc recovery (Zn)

Gold grade (Au)

Gold recovery (Au)

53.0 %

85.3 %

more than 90%

70%

Earlier a preliminary exploration was carried out at the deposit (1978-2002). Since 2007 detailed exploration activities are on. The Feasibility Study of exploration conditions and gold-sulphide-zinc ore reserves estimation should be completed H1 2011.

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