MEIMECHITE–PICRITE ASSOCIATIONS IN SIBERIA, PRIMORYE, AND KAMCHATKA (comparative analysis and petrogenesis)
Yu.R. Vasil’ev1,2, M.P. Gora3
1V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, ul. Pirogova 2, Novosibirsk, 630090, Russia
2Novosibirsk State University
3V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
Keywords: Meimechite–picrite associations, comparative analysis, geochemistry, petrogenesis
Abstract
Analysis of petrochemical and geochemical information on rocks and primary melt inclusions from olivines of meimechite-picrite associations of different ages in Siberia (Maimecha–Kotui province), Primorye (Sikhote–Alin), and Kamchatka was made. It showed that the rocks, despite their similar appearance and identical structural patterns, differ considerably in the contents and distribution of incompatible and rare-earth elements and in the composition and evolution trends of parental high-temperature highly magnesian melts.
DOI: http://dx.doi.org/10.1016/j.rgg.2014.07.004
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