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...Territories, Colorado/Wyoming). Ten new U – Pb perovskite/mantle zircon and Rb – Sr phlogopite age determinations...Within the Type 3 Slave craton, at least four kimberlite age domains exist: I-a southwestern Siluro-Ordovician |
Estes Park Kimberlite, Larimer County, Colorado, USA