Browsing by Author "Yarmolyuk V.V."
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Browsing by Author "Yarmolyuk V.V."
Now showing items 1-20 of 25
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Lykhin D.A.; Kovalenko V.I.; Yarmolyuk V.V.; Kotov A.B.; Kovach V.P.; Sal'nikova E.B. (2004)The Orot bertrandite deposit is one of the largest deposits in the Western Transbaikalian beryllium metallogenic province. The deposit is associated with alkaline granitoids of the Malokunalei complex and volcanic rocks ...
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Yarmolyuk V.V.; Kovalenko V.I. (2003)Three large batholiths formed in the Central Asian fold belt in the period 310-190 Ma: Angara-Vitim, Hangayn, and Henteyn-Daurian. They are made up of granitoids of variable composition - from tonalities and plagiogranites ...
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Yarmolyuk V.V.; Arakelyants M.M.; Lebedev V.A.; Ivanov V.G.; Kozlovskii A.M.; Lebedev V.I.; Nikiforov A.V.; Sugorakova A.M.; Baikin D.N.; Kovalenko V.I. (2003)
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Naumov V.B.; Portnyagin M.V.; Tolstykh M.L.; Yarmolyuk V.V. (2003)First evidence was obtained on the composition of melt and fluid inclusions in olivine phenocrysts from the trachybasalt of the southern Baikal volcanic region (eastern Tuva lava highland). Inclusions were studied by the ...
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Kozakov I.K.; Kovach V.P.; Kotov A.B.; Salnikova E.B.; Zagornaya N.Yu.; Yarmolyuk V.V. (2003)The compositions of igneous rocks from the Tuva-Mongolia massif were studied. These rocks were formed during the precollisional, syncollisional, and postcollisional stages of massif formation. The compositions of strongly ...
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Yarmolyuk V.V.; Kovalenko V.I. (2003)The role of geodynamics and mantle plumes in the formation of the Central Asian Fold Belt is discussed. The isotopic geochemical study demonstrates that the mantle plumes were derived from moderately depleted and enriched ...
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Kovalenko V.I.; Yarmolyuk V.V.; Vladykin N.V.; Ivanov V.G.; Kovach V.P.; Kozlovsky A.M.; Kostitsyn Yu.A.; Kotov A.B.; Sal'nikova E.B. (2002)The epochs of formation, geodynamic setting and sources of rare-metal magmatism in Central Asia were discussed. It was found that in the late paleozoic-early mesozoic epoch, intraplate activity persisted but the area of ...
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Yarmolyuk V.V.; Kovalenko V.I.; Zhuravlev D.Z.; Litvinovsky B.A.; Zanvilevich A.N.; Posokhov V.F.; Jahn B.-M.; Vorontsov A.A.; Sandimirova G.P.; Kuz'min D.V. (2001)Rb-Sr and Sm-Nd isotopic systems were investigated in the peralkaline granitoids and comagmatic volcanic rocks, which compose the Northern Mongolia-Transbaikalia Belt (NMTB). The belt extends over more than 2000 km at a ...
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Sorokin A.A.; Sorokin A.P.; Yarmolyuk V.V.; Kotov A.B.; Kudryashov N.M.; Jinyi L. (2004)Early Mesozoic geological events played an important role in the structural evolution of Eastern and Central Asia. They involved collision between Siberia and Sino-Korean continents. This was accompanied by the closure of ...
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Kovalenko V.I.; Yarmolyuk V.V.; Kovach V.P.; Kotov A.B.; Kozakov I.K.; Salnikova E.B.; Larin A.M. (2004)The available geological, geochronological and isotopic data on the felsic magmatic and related rocks from South Siberia, Transbaikalia and Mongolia are summarized to improve our understanding of the mechanisms and processes ...
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Nikiforov A.V.; Yarmolyuk V.V.; Kovalenko V.I.; Ivanov V.G.; Zhuravlev D.Z. (2002)Carbonatites in the western Transbaikalia rift area have a mid-Early Cretaceous age (130-120 Ma) and comprise lavas, tuffs, dikes, and veins, which are commonly associated with alkaline and subalkaline gabbroids and syenites. ...
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Vorontsov A.A.; Yarmolyuk V.V.; Ivanov V.G.; Nikiforov A.V. (2002)Magmatic activity occurred in the Dzhida sector of the Western Transbaikalia rift zone from the Late Jurassic throughout the Early Cretaceous. The time interval of 159-100 Ma was marked by at least six pulses of magmatic ...
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Yarmolyuk V.V.; Kovalenko V.I. (2001)
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Kovalenko V.I.; Girnis A.V.; Yarmolyuk V.V.; Dorofeeva V.A.; Naumov V.B. (2004)The presented generalized model spans magma compositions of all known modern or young plumes. In this context, a problem arises in the realization of this model for certain objects. This model is acceptable for the Hawaiian ...
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Kovalenko V.I.; Yarmolyuk V.V.; Kozlovskii A.M.; Ivanov V.G. (2001)
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Kovalenko V.I.; Yarmolyuk V.V.; Kovach V.P.; Kotov A.B.; Sal'nikova E.B. (2003)The structure of the Caledonian area of the Central Asian fold belt is determined by Caledonian folded formations made up of Vendian-Cambrian ophiolite and island-arc complexes and by terrains or microcontinents of older ...
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Yarmolyuk V.V.; Kovalenko V.I.; Ivanov V.G.; Pokrovskii B.G. (2003)The results of geochronological, geochemical, and isotopic investigations for magmatism and geodynamics of the Southern Baikal Volcanic region (mantle hot spot) are presented. The data presented suggest that the formation ...
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Kovalenko V.I.; Yarmolyuk V.V.; Kozlovskii A.M.; Kovach V.P.; Sal'nikova E.B.; Kotov A.B.; Khanchuk A.I. (2004)The Khaldzan Buregte group of alkaline massifs was formed during seven intrusive phases and is confined to a large dike belt within Early Caledonian island-arc ophiolite and normal granite cutting the ophiolite. The uranium ...
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Lykhin D.A.; Kovalenko V.I.; Yarmolyuk V.V.; Kostitsyn Yu.A.; Sal'nikova E.B.; Kotov A.B.; Kovach V.P.; Ripp G.S. (2001)We have determined the Rb-Sr isotopic ages of magmatic rocks and ores from the Ermakov deposit and established the following succession of formation from the early to the late stages: (1) formation of the host rocks ...
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Kovalenko V.I.; Yarmolyuk V.V.; Budnikov S.V.; Sal'nikova E.B.; Kovach V.P.; Kotov A.B.; Ponomarchuk V.A.; Kozlov V.D.; Vladykin N.V. (2003)According to the results of isotopic and geochemical investigations (neodymium, strontium, and oxygen isotopes and trace elements), the Early Mesozoic rocks of the Mongolia-Transbaikalia magmatic area were derived from ...
Now showing items 1-20 of 25