Detall

Conferència: "The Economic Potencial of Carbonatites"

Notícia | 03-03-2008

a càrrec de la Dra. Katheryn Ruth Moore, Dept. of Earth and Ocean Sciences, National Univerity of Ireland, Galway, Irlanda
CICLE DE SEMINARIS DE LA FACULTAT DE GEOLOGIA I L'INSTITUT DE CIÈNCIES DE LA TERRA "JAUME ALMERA"

Universitat de Barcelona (UB)
Consell Superior d'Investigacions Científiques (CSIC)

Dia: dilluns 3 de març.
Hora: 12:00 h.
Lloc: sala d'actes de l'Institut Jaume Almera

Resum: Carbonatites (igneous rocks with > 50% by volume of carbonate minerals) are characteristically enriched in REE, Ba, Sr, F, P, Nb, U, Th and base metals such as Cu, Pb, and Zn. Important minerals include apatite, monazite, badellyite, pyrochlore, uraninite and strontianite, and 1 in 20 mineral deposits in carbonatites are economic. The general and economic geology will be presented for three case studies. (1) The Jacupiranga carbonatite in Brazil has the highest grade of phosphorous of any mineral deposit in the world. (2) The Palabora carbonatite in South Africa, probably the most economically important carbonatite in the world, is a major source of copper and a wide range of other commodities. (3) The Chagatai carbonatite in Uzbekistan is the first carbonatite to be reported containing diamonds. The economic significance of these case studies highlights the need to better understand the petrogenesis of carbonatites in order to inform future mineral exploration.



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