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Strategies & Market Trends : Ride the Tiger with CD -- Ignore unavailable to you. Want to Upgrade?


To: loantech who wrote (167994)7/6/2009 10:00:21 AM
From: TheBusDriver  Read Replies (1) | Respond to of 313013
 
plan? They plan to make a ton of money!..but will they?



To: loantech who wrote (167994)7/6/2009 11:31:35 AM
From: E. Charters  Read Replies (1) | Respond to of 313013
 
I queried (albeit briefly) their mining team leader who had recently been hired. It was not a long convo, but I have a bit of mining experience so I could get a feel to whether they had solutions and hope for better economics quite quickly. It was extremely encouraging. He provide quick responses to "interrogation" that did not falter, and furthermore was convincing that there was a new broom, and their new techniques would work. Chief areas of concern were paste fill method, which they mentioned in the past was a problem. dilution, mining rate etc. The reasons the fill methods were slow or did not work was explained. (lack of access chutes to stopes in new development areas. You have to have overhead high angle raises from which to pump concrete down into a stope. From the same level this is difficult because you have to pump the stuff sideways. Too many twists and turns and you get blockages. I had worked on cut and fill at the Kerr so I knew the problem. I suggested they use at level stope-specific high pressure machines, move dry materials by car, mix and pump slurry vertically a short distance.) The new direction of the new staff on tackling problems of this sort and their predictions of the time frame to economics lends credence to the supposition that an implementation of a solution was in hand and on track. KGI has high grade, a fairly intensive exploration program, impressive widths, infrastructure in place and expansion planned. A good, profitable operation should be in the offing. I would keep checking their operations that such milestones that lend confidence are being met, to continue to give comfort that going long such producers who have upside written in is a good strategy in an expanding gold market.

I still feel their accuracy regarding mining the stuff they actually drill, is hard to establish. It is one thing to cut an intersection, but where is it with regard to the later cut stope? It isn't always obvious. you have to survey what you cut, and if you drill cut holes vertically from a sideways tunnel in the vein, (the tunnels or blast hole drifts are placed every 35 feet vertically. They are called sub-levels, hence the term sub level blast hole caving).. then the exact position of your vertical blast hole ring drilling is moot with reference to the lateral diamond drill hole that located the ore. I would try to solve this with better more accurate survey alignment of the blast hole drill head and better more accurate survey alignment of the drill head of the ddh machine. (We used to take survey points on two positions of the ddh drill string, not just its position and rough angle. Accuracy was high, within on minute of a degree. This way the geometrics of the two intersections, blast hole and diamond drill hole are better correlated. Faster mining by vertical raising and lateral drilling might allow less hanging wall wastage which dilutes the ore, another problem, he agreed they face. Sublevel is fairly fast, but overbreak is a problem into soft hanging walls, You use so much dynamite in the blasts that you get all kinds of extraneous stuff coming in. Still hoisted grade sounded not too bad. Costs have to come down, and I think mining control is an area of continuous experimentation in this high cost country.

EC<:-}