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Gold/Mining/Energy : Manhattan Minerals (MAN.T)

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To: Sailfish who wrote (3959)1/15/2000 9:20:00 AM
From: Bruce Robbins  Read Replies (1) of 4504
 
Hi Ray,

>>definition of "infill drilling"<<

They are filling in the gaps between previous drill holes. In a feasibility study one goal is to be able to reliably estimate the grade and tonnage at any point in the deposit. In order to do that, you need to drill a number of holes over a set distance (in this case it appears to be 50 meters) to acquire enough data to be able to say that you are x% certain that the grade and tonnage at an unknown point is ...

I would be careful about interpreting the results from the sulfide orebody- MAN has been doing infill over the central part of the deposit, which usually has the most copper and the thickest widths (compare one new hole with an old one nearby). When the definition drilling is complete, IMO we can expect to see the already stated resources change by plus or minus 10% (if they change). The main thing that will change is that they will carry the terms proven and probable reserves.

Bruce
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