Overview
Stage | Production |
Mine Type | Underground |
Commodities |
|
Mining Method |
- Shrinkage stoping
- Sub-level caving
- Room-and-pillar
|
Production Start | ... |
Irtyshsky mine is one of three underground mines in the East Region. The ore from these mines is processed at the Orlovsky and Nikolayevsky concentrators. |
Source:
p. 2
Company | Interest | Ownership |
Nova Resources B.V.
|
100 %
|
Indirect
|
Vostoktsvetmet LLC
(operator)
|
100 %
|
Direct
|
KAZ Minerals has been wholly acquired by Nova Resources BV to support the Company’s pursuit of a capital-intensive strategy focused on long-term growth.
KAZ Minerals Limited is a high growth copper company focused on large scale, low cost, open pit mining in Kazakhstan. It operates the Aktogay and Bozshakol open pit copper mines in the Abay and Pavlodar regions of Kazakhstan, three underground mines and associated concentrators in the Abay and East regions of Kazakhstan and the Bozymchak copper-gold mine in Kyrgyzstan.
Vostoktsvetmet is a wholly-owned subsidiary of KAZ Minerals.
Contractors
- Subscription is required.
Summary:
Irtyshsky is an operating underground mine exploiting a polymetallic volcanogenic massive sulphide (VMS) deposit of average size and grade. The mineralisation is of lenses with extensive strike extents but more limited down-dip persistence. There are three principal ore bodies: Main, South East, No 2.
Irtyshsky Principal Orebodies:
Main:
- Orebody Strike length - 2,500 m;
- Down-dip length - 750 m;
- Thickness - 3.5 m.
South East:
- Orebody Strike length - 3,000 m;
- Down-dip length - 400 m;
- Thickness - 2.7 m.
No 2:
- Orebody Strike length - 1,600 m;
- Down-dip length - 300 m;
- Thickness - 1.35 m.
The orebodies pitch slightly to the NW with their long axes roughly parallel. The average strike of the Irtyshsky ore body is NW-SE and the dip of the ore body is steep to sub-vertical (70-80°). The ore body is gently folded with secondary thickening of the ore lenses in the fold axes. The copper and zinc grades increase with increasing depth from surface.
Mining Methods
- Shrinkage stoping
- Sub-level caving
- Room-and-pillar
Summary:
Labour intensive shrinkage stoping is used with high ore dilution (32%). Some sublevel caving and room and pillar mining is also conducted. Jackleg drills and slushers are used for mining with rail haulage to the ore pass leading to a jaw crusher. Hoisting in a 650 m deep shaft is conducted with 10 t skips.
Source:
Source:
- subscription is required.
Source:
Summary:
- subscription is required.
Reserves at December 31, 2021:
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade |
Proven & Probable
|
1 Mt
|
Copper
|
1.24 %
|
Proven & Probable
|
1 Mt
|
Zinc
|
2.29 %
|
Proven & Probable
|
1 Mt
|
Gold
|
0.2 g/t
|
Proven & Probable
|
1 Mt
|
Silver
|
38 g/t
|
Proven & Probable
|
1 Mt
|
Lead
|
0.26 %
|
Measured & Indicated
|
1.6 Mt
|
Copper
|
1.58 %
|
Measured & Indicated
|
1.6 Mt
|
Zinc
|
4.93 %
|
Measured & Indicated
|
1.6 Mt
|
Gold
|
0.38 g/t
|
Measured & Indicated
|
1.6 Mt
|
Silver
|
70 g/t
|
Measured & Indicated
|
1.6 Mt
|
Lead
|
0.65 %
|
Corporate Filings & Presentations:
- Subscription is required.
- Subscription is required.