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Ministry of Energy Mines and Responsible for Core Review

GeoFile 2004-3:  Diamond Exploration Concepts in British Columbia

by George J. Simandl and Nicole Robinson


View GeoFile (PDF, 7.04 MB)


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.


All publications of the BC Geological Survey are available digitally, free of charge, from this website.


For questions or more information on geology and minerals in British Columbia contact BCGS Mailbox or call toll free (BC Residents only).