Increased recovered value by up to 7 Million2 CAD during Q1, 2018
Accurate monitoring of blast movement helped Canadian Malartic recover 217,000 tonnes of ore, valued at $7 Million, in Q1 2018.
An example blast, shown right, demonstrates how monitoring blast movement recovers more ore.
Significant movement occurs within all blasts. Variation of ±50% from the mean horizontal movement is common and occurred in this blast.
- Measured horizontal movement3 ranged from 3.8 – 7.9 m (12 – 26 ft) and vertical movement was up to 1.5 m (5 ft)
As a result of accurately accounting for movement in this blast, Canadian Malartic:
- Avoided 6% dilution because 11,688 tonnes of waste were diverted from the mill
- Prevented 14,138 tonnes (8%) of ore being misclassified and sent to the wrong stockpile
- Maximized ore yield—6,858 tonnes (4%) of ore, valued at CA$159,8854, was not sent to the waste pile
* Average grade of ore polygons;
1. Prior to implementing the BMM System in December 2012;
2. Calculated from 70 production blasts Jan – Mar, 2018;
3. Movement measured by BMT’s BMM System;
4. Calculated at a gold price of CA$1,800/oz.
“BMT has made a significant improvement to grade and recovered tonnes. I would definitely recommend BMT.”
Mr. S. Lajoie, Technicien Géologie – BMM, Canadian Malartic
In this blast, Canadian Malartic avoided the potential loss of CA$159,885 (4% of ore was not sent to waste) and prevented 6% dilution (11,688 tonnes) and 8% misclassification (14,438 tonnes).