Olivine in kimberlites
نویسندگان
چکیده
What olivine, the neglected mineral, tells us about kimberlite petrogenesis N. T. Arndt, A. M. Boullier, J. P. Clement, M. Dubois, and D. Schissel OSUG, Univ. de Grenoble, BP 53, Grenoble cedex 38401, France U.F.R. des Sciences de la Terre, UMR 8110 Processus et Bilans des Domaines Sédimentaires, 59655 Villneuve d’Ascq, France BHP Billiton World Exploration, Inc., 1400-1111 West Georgia Street, Vancouver, B.C. V6E 4M3, Canada Received: 24 April 2006 – Accepted: 23 May 2006 – Published: 20 June 2006 Correspondence to: N. T. Arndt ([email protected])
منابع مشابه
What olivine, the neglected mineral, tells us about kimberlite petrogenesis
We report here the results of a petrographic and geochemical study of remarkably well-preserved kimberlites from the Kangamiut region in Greenland. The samples contain between 5 and 45% of olivine in the form of rounded “nodules”, each 1 to 5 mm in diameter. Most originally were single crystals but many consist of polycrystalline, monomineralic aggregates. Olivine compositions vary widely from ...
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