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Gold/Mining/Energy : ISLAND-ARC RESOURCES IAR-VSE

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To: VAUGHN who wrote (141)1/22/1999 12:34:00 PM
From: teevee  Read Replies (1) of 186
 
Vaughn,
I did not say that type II kimberlites are typically not economic. I stated that with Type II kimberlites, a high G-10 count, and lots of G-10s with compositions low in Ca and high in Cr (towardsJ-1), is not indicative of grade potential, as for example,with type I kimberlite.
I suggest you obtain a paper by J.J. Gurney entitled:
The Interpretation of the Major element compositions of Mantle Minerals in Diamond Exploration
J.J. Gurney, Paul Zweistra
Journal of Geochemical Exploration 53,(1995) pp293-309
regards,
teevee
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