Some info with regards dilution as reported in Asx -Releases
ASX/Media Release – 18 December 2017
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OGX’s new management team believes it has been a combination of excessive dilution during mining together
with low recoveries from its imported gravity recovery plant that has continued to struggle to recover the fine grade gold component of the ore.
ASX/Media Release – 19 February 2018
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Production Ramp Up
Production ramp up is underway, the higher-grade ore that has been stockpiled underground is currently being hoisted to surface for processing through the
new hammer mill.
With new drilling and blasting methods successfully implemented in the stopes, we have been able to reduce the explosives consumption by 51% and are
able to control the ore dilution see (Image 4).
Image 4; New stope blasting method 30cm ore vein removed with minimal explosives.
Our mine planning department is currently redesigning the mine which will be driven
on ore and with minimal waste development.
This design will give us larger stopes to extract ore from and
minimize the number of development drives.
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