POLYGENESIS OF DIAMONDS IN THE SIBERIAN PLATFORM
V.P. Afanas'eva, S.S. Lobanova, N.P. Pokhilenkoa, V.I. Koptil'b, S.I. Mityukhinb, A.V. Gerasimchukb, B.S. Pomazanskiib, and N.I. Gorevb
a V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
b Yakutian Research Geological Exploration Enterprise (YaNIGP) TsNIGRI, ALROSA CJSC, Chernyshevskoe sh. 7, Mirnyi, 678170, Russia
Keywords: Diamond, diamond sources, polygenesis, Siberian Platform
Pages: 259-274
Subsection: PETROLOGY, GEOCHEMISTRY, AND MINERALOGY
Abstract
Diamonds from the Siberian Platform have been studied in terms of their polygenesis, specifically their origin from different types of primary sources. Five types of diamonds have been distinguished, which might have originated from different primary sources, and their distribution over the platform has been shown. The sources of two types of diamonds (kimberlitic and impact) are known. The former originated from Phanerozoic kimberlites, and the latter, from astroblemes. For the other types, nonkimberlitic sources are suggested, including Precambrian ones.
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