Hello jpthoma1
Actually, there are significant variations in the ages (400ma) and levels of erosion (km's) of NWT/Nunavut kimberlites with many such variations occurring less than 100km from one another.
It would also appear that there are approximately four different ages of Quebec kimberlites with somewhat related variations in their level of erosion.
Age is not always directly related to the level of erosion, hence economics. Certainly Premier and Venetia, et all are proof of that, but it certainly should be considered when first looking at economic potential especially in Canada.
I don't have time to get into more detail, but suffice it to say that if anyone is considering a particular Canadian diamond play for reasons other than "it's hot", try to find out as much as possible about geological setting, age, geochemistry, glacial history, levels of erosion, micro/macro ratios, caribou migration routes, etc, etc.
Regards
Vaughn |
