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Gold/Mining/Energy : SOUTHERNERA (t.SUF)

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To: Ron S. who wrote (1912)8/10/1998 2:41:00 PM
From: VAUGHN  Read Replies (1) of 7235
 
Hello Ron

Sorry, but DeBeers and the Russians have not been publishing such information to my knowledge. Non of the papers I have had access to have ever referenced this subject.

I would imagine it is fairly typical and probably more important over older pipes in arid climates (previously sub-tropical)such as many of those in the RSA, and Botswanna, than it might be say in the NWT for example, where the emplacement ages are between 70ma and 30ma ago and glaciers have long since scraped away most overburden.

I suspect Argyle had such an overburden concentration but again I do not have first hand information.

Perhaps you should give Argyle Diamonds Australia in Perth a call and ask them?

Tel: (61-8) 9482 1166
Fax: (61-8) 9482 1161

You might also consider calling Kim Freeman or asking Chris if he has the time.

I hope to see HB up here this week and if I do I'll ask him.

Regards
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