 | | Journal (issue) | | Page Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA By Philip Persson...Platinum By Van King, newryqs@gmail.com Unusual Diamond localities of the United States By Yinan Wang,...Mineralogy and History of Silver Deposits in the Calico District, California By Jeremy Zolan, jzolansci@gmail.com... 54 Page 28 42 48 Page Page COVER IMAGE: Diamond Crystal in Matrix Crystal Edge: 55cm Mir Pipe,...Introducing Gemdat A Guided Tour Best Minerals - Diamond, Platinum, Gold and Silver Mindat is a free worldwide |  | | Journal (article/letter/editorial) | | of kimberlite magmatism in North America: implications for global kimberlite genesis and diamond exploration...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 – Pb perovskite/mantle zircon and Rb –...phlogopite age determinations are reported here for kimberlites from the Slave and Wyoming cratons of western |  | Griffin, W.L., O'Reilly, Suzanne Y., Doyle, B.J., Pearson, N.J., Coopersmith, H., Kivi, K., Malkovets, V., Pokhilenko, N. (2004) Lithosphere mapping beneath the North American plate☆. Lithos, 77 (1) 873-922 doi:10.1016/j.lithos.2004.03.034 | Journal (article/letter/editorial) | | Sydney, NSW 2109, Australia b CSIRO Exploration and Mining, North Ryde, NSW 2113, Australia c Kennecott Canada...V6C 1S4 d Great Western Diamond Co., PO Box 1916, Fort Collins, CO 80522, USA e Kennecott Canada Exploration...Laurentian continental core (W. Greenland, Colorado – Wyoming district, Arkansas) show discontinuities and gaps...beneath the Colorado Plateau is significantly less refractory. The SCLM beneath the Kansas kimberlite field...paper we report data on >5900 garnets from >85 kimberlites and related rocks in 27 areas across the Fig |
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