RE: Up, Up, Up - Capital Drilling Profit Soars Thanks To Centamin22 Mar 2023 10:39
Paul, Firstly I retired back in 2008 albeit I did some consulting for a number of years and Burkina wasn't/isn't a country that I have a great deal of experience and I have no first hand knowledge of Martin Horgan. I have however spoken to people who have met him and or been involved with mines that he has had some degrees of responsibility and I am told that he is extremely knowledgeable on all aspects of mining and that he is a straight talker and well respected.
What would I have done to sort out the possible collapse of the North Wall, to be honest I have no idea because it depends on how bad the fissure is but first priority is to stay very clear and get in the experts and I am not an expert.
This stopped the mining of the North Wall and from what I understand or remember this was the area that was necessary to meet production estimates as the grades were predicted to be 2 grammes per ounce.
There was at that time very little that could then be done to maintain production because there was limited alternative ore resources that could be mined.
As far as I am concerned I would have liked the mining contract reduced to less than 4 years but what I hear and read is that the 4 years is described as a blitz or fast track so guess 4 years was deemed as being the optimum.
Don't get me wrong I would rather that this waste contract didn't have to happen and without walking the mine with the guys on the ground it is really difficult to fully understand why they got into this situation.
I will give you my opinion because looking from the outside it seems as though the waste removal is really like opening up a new mine where there is no free dig.
I am going to try now to explain what the mine will look like before mining starts. Imagine a barren landscape with out crops of rock. Free dig means the earth has gold fines invisible to the human eye weathered through the centuries known as oxides. Easy and relatively cheap to process through simple leach pad technology.
No free dig means the need to clear the top levels of waste to get down to ore bearing material hopefully oxides but the deeper you go less likely it is weathered so start getting into transitional and sulfides which will be processed through the plant.
This waste removal will involve drill and blasting, construction of haul roads, laying down dump sites, as I say like opening up a new mine or pit with little or no return but necessary to get to the ore bearing material so in my view the quicker the better.
Kees Decker is a well respected analyst but even with all of his experience without spending time on the mine much of what he is saying is based on what he is able to glean from reports not first hand knowledge that he can gather from questions and looking at the operation.
I hope my maybe over simplistic response helps answer the questions that you asked of Cowichan.