SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Gold/Mining/Energy : Caldara's Diamond CDR,M
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: chevalier who wrote (200)6/29/1998 3:53:00 AM
From: Aurum  Read Replies (1) of 303
 
Ari, there are several possible reasons to drill this deep. In Australia kimberlites etc are very deeply weathered, so deep samples are required to get a true picture of the host rock. Secondly, the diamond content in diatremes is usually very variable (it also varies quite a bit in South African type pipes) and the top layers are often barren, or low grade. Usually there is only one phase of the diatreme or pipe that will carry diamonds, and this may not outcrop (or even come close to the surface).
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News