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Gold/Mining/Energy : Trump's 12 Diamond Picks, Discussions Limited
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To: Tomato who wrote (1321)10/9/1998 1:04:00 PM
From: Walt  Read Replies (4) of 2251
 
Greetings all, I have been rather busy of late either out in the bush prospecting or in some of the smaller communities teaching prospecting workshops. Hope to get out to my cabin for the long weekend but freeze up is not far off. I think the high today is predicted as minus 1 C.
Intersting news on several fronts but I thought I would take a go at eleborating on Tomatoes post.
Lets say that you go to the store and buy ten loaves of raison bread. Theoretically every loaf should have aproximaately the same number of raisons in it, and Im sure some companies work it so there are.
Now imagine that those ten loaves lined up end to end on your kitechen table represent the dyke. Cut a slice out of one loaf and count the raisons. That slice represents a bulk sample. You might get five raisons, maybe three, maybe only part of one raison or maybe none.
That is the problem with sampling.
The bread may have raisons scattered through out it, they may be fairly evenly distributed but one slice may vary in raison count from another. Obviously the bigger the slice that you take the more representative it is of the whole. But the concentrations in the bread will vary some.
Drilling is like taking a straw and stiking it into the loaves. Chances are you are not going to get a whole raisen.(Ie big diamond) You might stick several straws in and come up raisonless or you could cut several raisons with one hole.
From what Ive read dykes tend to be more uniform as to grade then pipes but variations can and do occure.
So some time when your bored play around with a loaf or raison bread and you can learn alot about sampling.
regards Walt
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