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Gold/Mining/Energy : Pacific Rim Mining V.PFG -- Ignore unavailable to you. Want to Upgrade?

To: Bill Jackson who wrote (8137)	12/11/1997 1:55:00 PM
From: Quickdraw	Respond to of 14627

I thought I felt your presence ... it was getting a little tight in their. I'm sure I stepped on a cat's tail! ;=) Cheers! Rick

To: Bill Jackson who wrote (8137)	12/11/1997 2:10:00 PM
From: Quickdraw	Read Replies (2) \| Respond to of 14627

Bill and Dave: I'm trying to do a little homework on the earlier Kriging estimate, how quickly a new one might be produced with the data from the 65 new holes and what factors were used in its initial calculation. I note kriging is mentioned as a method in a few PRs of late and I extracted the following statement. "employed a restricted kriging process to generate the resource estimate. A summary of the resource calculations is provided below for four cases utilizing different gold cut-off grades." exchange2000.com (kriging mentioned in this PR) exchange2000.com (kriging mentioned in this PR) The key phrase in the quotation, in my mind is that different cut off grades were used to produce a number of resource estimates. I never clued in to how this variable might be used to upgrade or downgrade the resource when the first resource estimate came out. Bill, did you ever notice what cut-off they used (i think they sent you a copy)? If yes, what was the cut-off used. Dave, do you care to make a guestimate on how long it should take to enter the new data into the formula. Hope this makes sense! Rick