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

To: Quickdraw who wrote (8139)	12/11/1997 2:45:00 PM
From: Shirley Owen	Read Replies (1) \| Respond to of 14627

Hi Rick, I'm looking at the release here and this was dated July 10,1997. This was their preliminary resource calculation for the Oculto Deposit. The cutoff grade was .35 equivalent g/t If you check the website you'll be able to read it yourself, Rick. It was calculated using 79 R.C. holes and 17 diamond drill holes. Cheers Shirely

To: Quickdraw who wrote (8139)	12/11/1997 6:19:00 PM
From: Bill Jackson	Read Replies (1) \| Respond to of 14627

Rick, The krieging method estimates resources that are nit fully drilled. By adjustment of the parameters you caan magnify or shrinh the deposit. So a very conservative estimate can be generated, as well as an optimistice one. It depends on the cutoff and the average variations you use in the kriegeing method. If the deposit is internally continuous and has edges, and does not occure beyond the edges, then krieging is not optimal for calculations as it will assume some holes in the deposit. Itis a substitute for insufficent drilling. Sort of like predicting a leopards spots from a few pin holes samples. It is OK for a spotted animal, but for a non spotted animal it makes spots(areas of no gold). I am away from home, I will look it up when I get home. Bill