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机译:Age and Melt Sources of Ultramafic Dykes and Rocks of the Bolshetagninskii Alkaline Carbonatite Massif (Urik-Iya Graben, SW Margin of the Siberian Craton)
Institute of the Earth’s Crust, Siberian Branch, Russian Academy of Sciences;
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences;
allikite; picrite; ijolite; syenite; carbonatite; Sm–Nd isochrone; 40Ar/39Ar dating; Urik-Iya Graben; Siberian Craton;