Operations
Mineral resources
The Talvivaara deposits comprise two polymetallic orebodies: Kuusilampi and Kolmisoppi.
The mineral resources have been classified according to the JORC Code with 0.07% Ni Cut-Off at 1,550 million tonnes , containing 0.22% of nickel, 0.49% of zinc, 0.13% of copper and 0.02% of cobalt. 72% of the mineral resource is in measured and indicated categories. The Competent Person as defined by the JORC Code is Mr Jukka Pitkäjärvi, MAusIMM
JORC classification of Talvivaara resources
|
Total mineral resources @ nickel cut-off 0.07% Oct 2010 |
||||||
|
Category |
Year |
Million tonnes |
Nickel (%) |
Zinc |
Cobalt |
Copper |
|
Measured |
2010 |
432 |
0.23 |
0.50 |
0.02 |
0.13 |
|
|
2008 |
364 |
0.23 |
0.51 |
0.02 |
0.13 |
|
Indicated |
2010 |
689 |
0.23 |
0.50 |
0.02 |
0.13 |
|
|
2008 |
278 |
0.22 |
0.49 |
0.02 |
0.13 |
|
Subtotal |
2010 |
1 121 |
0.23 |
0.50 |
0.02 |
0.13 |
|
|
2008 |
642 |
0.23 |
0.50 |
0.02 |
0.13 |
|
Inferred |
2010 |
429 |
0.20 |
0.47 |
0.02 |
0.12 |
|
|
2008 |
363 |
0.20 |
0.49 |
0.02 |
0.12 |
|
Total |
2010 |
1 550 |
0.22 |
0.49 |
0.02 |
0.13 |
|
|
2008 |
1 004 |
0.22 |
0.50 |
0.02 |
0.13 |
|
Mineral resources at Kuusilampi & Kolmisoppi deposits @0.07% nickel cut-off |
|||||||
|
|
|
Million tonnes |
Nickel |
Zinc |
Cobalt |
Copper |
Uranium |
|
Kuusilampi |
Measured |
331 |
0.23 |
0.50 |
0.02 |
0.13 |
0.0016 |
|
|
Indicated |
457 |
0.23 |
0.50 |
0.02 |
0.13 |
0.0017 |
|
|
Subtotal |
789 |
0.23 |
0.50 |
0.02 |
0.13 |
0.0017 |
|
|
Inferred |
101 |
0.14 |
0.44 |
0.01 |
0.09 |
0.0018 |
|
|
Total |
890 |
0.22 |
0.49 |
0.02 |
0.13 |
0.0017 |
|
|
|
|
|
|
|
|
|
|
Kolmisoppi |
Measured |
101 |
0.24 |
0.51 |
0.02 |
0.14 |
0.0019 |
|
|
Indicated |
232 |
0.24 |
0.50 |
0.02 |
0.14 |
0.0019 |
|
|
Subtotal |
333 |
0.24 |
0.50 |
0.02 |
0.14 |
0.0019 |
|
|
Inferred |
328 |
0.22 |
0.48 |
0.02 |
0.13 |
0.0017 |
|
|
Total |
660 |
0.23 |
0.49 |
0.02 |
0.14 |
0.0018 |
|
|
|
|
|
|
|
|
|
|
Total |
Measured |
432 |
0.23 |
0.50 |
0.02 |
0.13 |
0.0017 |
|
|
Indicated |
689 |
0.23 |
0.50 |
0.02 |
0.13 |
0.0018 |
|
|
Subtotal |
1 121 |
0.23 |
0.50 |
0.02 |
0.13 |
0.0018 |
|
|
Inferred |
429 |
0.20 |
0.47 |
0.02 |
0.12 |
0.0017 |
|
|
Total |
1 550 |
0.22 |
0.49 |
0.02 |
0.13 |
0.0017 |
The orebodies are well-suited for open-pit excavation due to a thin overburden and favourable resource geometry. The deposits can be mined with an overall waste to ore ratio close to 1/1.