| | Journal (article/letter/editorial) | Neoproterozoic ‘anomalous’ kimberlites of Guaniamo, Venezuela: mica kimberlites of ‘isotopic transitional’...Columbia, Canada V7S 3J1 Guaniamo Mining Company, Centro Gerencial Mohedano, Office 9D, La Castellana, Caracas...Caracas, Venezuela Received 27 June 2003; accepted 17 February 2004 Available online 17 July 2004 Abstract...Abstract In Venezuela, kimberlites have so far only been found in the Guaniamo region, where they occur as...emplacement age of the Guaniamo kimberlites is 712 F 6 Ma, i.e., Neoproterozoic. The Guaniamo kimberlites contain | | | Journal (article/letter/editorial) | pyrochlore-group minerals from the Guaniamo kimberlites, Venezuela Victor V. Sharygin a,⁎, Nikolai V....Novosibirsk, Russia Guaniamo Mining Company, Centro Gerencial Mohedano, Office 9D, La Castellana, Caracas...Caracas, Venezuela a r t i c l e i n f o Article history: Received 23 September 2008 Accepted 28 March...Keywords: Pyrochlore Betafite Perovskite Kimberlite Carbonatite Venezuela a b s t r a c t Oscillatory-zoned...minerals are found in the La Ceniza diamondiferous kimberlites, Guaniamo region, Venezuela. This is the first |
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