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Kierens Deposit

DESCRIPTION

Historical production from 1965 to 1966 and from 1988 to 1992 amounted to 251,000 tonnes at 6.30 g/t Au for 52,000 ounces of gold. (1) The following tables provide details on the 43-101 mineral resource effective December 1, 2009:

Sensitivity of the mineral resource between surface and 200 metres vertical

Cut off grade
(g Au/t)
Indicated Inferred
Tonnes g Au/t oz Au Tonnes g u/t oz Au
0.5 1 110 000 1.66 59 000 1 454 000 1.30 61 000
1.0 633 000 2.38 48 000 635 000 2.11 43 000
2.0 271 000 3.65 32 000 247 000 3.18 25 000
2.5 190 000 4.26 26 000 156 000 3.73 19 000
3.0 133 000 4.91 21 000 102 000 4.27 14 000
4.0 66 000 6.38 14 000 38 000 5.66 7 000

 

Sensitivity of the mineral resource below 200 metres vertical

Cut off grade
(g Au/t)
Indicated Inferred
Tonnes g Au/t oz Au Tonnes g u/t oz Au
0.5 2 538 000 1.47 120 000 3 589 000 1.28 148 000
1.0 1 347 000 2.16 94 000 1 605 000 2.02 104 000
2.0 516 000 3.36 56 000 580 000 3.03 57 000
2.5 327 000 4.02 42 000 326 000 3.66 38 000
3.0 212 000 4.71 32 000 192 000 4.32 27 000
4.0 100 000 6.14 20 000 78 000 5.66 14 000

 

(1) The listed grades for historical production are uncertain because some production records combine two or more deposits and it is not clear whether the reported grades represent recovered or in situ grades. In some cases, it is also unclear whether the reported numbers include waste from development workings. Numbers may therefore show some discrepancy depending on the source.

Dépôt Kierens - Section longitudinale
Dépôt Kierens – Section longitudinale

 

The Kierens deposit is similar to the Norlartic deposit because it is hosted by the same main dioritic dyke. The orientation of the dyke is also NW-SW, but the dip ranges from 70° to 90° to the NE. The Kierens deposit also occurs within the Norbenite sheared corridor.