The timing of kimberlite magmatism in North America: implications for global kimberlite genesis and diamond...compilation of more than 100 kimberlite age determinations, four broad kimberlite emplacement patterns can...Saskatchewan, central USA), and (4) a western mixed (Cambrian-Eocene) Type 3 kimberlite province (Alberta...(Alberta, Nunavut, Northwest Territories, Colorado/Wyoming). Ten new U β Pb perovskite/mantle zircon and Rb β...Within the Type 3 Slave craton, at least four kimberlite age domains exist: I-a southwestern Siluro-Ordovician |