Troy adjusts expectations as ground slips
PERTH (miningweekly.com) – Gold miner Troy Resources has downgraded its 2016 production expectations from between 70 000 oz and 80 000 oz, to between 63 000 oz and 65 000 oz, on the back of unstable ground conditions at its Karouni operation, in Guyana.
Troy said on Thursday that regular monitoring checks and telemetry controls at Karouni had indicated an increase in unstable ground conditions around the southern wall, within the Smarts pit, where the sand cover was at its thickest.
This resulted in the need to remediate a number of slippages, which, in turn, restricted access to some of the higher grade areas in the Smarts Stages 2 and 3.
“This situation is extremely disappointing given the recovery in mining performance in October and November after the impact the wet season had on production,” said Troy CEO Martin Purvis.
Operational management is currently reviewing the impact of the situation on the scheduled mine plan, but, in the meantime, production has been refocused on the upper benches in Smarts Stages 1 and 4 and Hicks Stage 2, which comprise lower-grade ore blocks.
As a result, unit costs will also be higher, owing to the lower estimated production output, and the additional costs required in order to manage the pit conditions.
A detailed geotechnical assessment of the openpit mining operation at Smarts is to be undertaken, which will also include a hydrological review and identification of appropriate response measures. The key objective of this review is to maximise the economic extraction of ounces from the affected areas, while giving priority to the safety of the workforce.
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