GeoFile 2004-3: Diamond Exploration Concepts in British Columbia
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A northwest trending pre-Jurassic alkaline petrographic province straddles the Rocky Mountain Trench in Eastern British Columbia. Alkaline complexes such as carbonatites, kimberlites, lamproites, and syenite gneisses are found here.
Diamonds have been reported from these rocks at Jack (Lens Mountain), Mark (Valenciennes River), Xeno (Kechika Area) and from the Cranbrook Cluster (Bonus and Ram 5 and 6). Diamond potential of British Columbia should be evaluated according to the traditional Diamondiferous Mantle Root Model in the east, and possibly by the modified version of the Subduction Zone Diamond model in the west. The finding of diamond bearing volcanic beds alert geologists that they should keep an open mind and be ready to test unconventional hypotheses.
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