Zobrazeno 1 - 10 of 15 pro vyhledávání: '"E. V. Sharkov"'
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Akademický článek
THE ORIGIN AND STRUCTURE OF THE LOWER CRUST OF OCEANS AND BACK-ARC SEAS: EVIDENCE FROM THE MARKOV DEEP (MID-ATLANTIC RIDGE) AND THE VOIKAR OPHIOLITE ASSOCIATION (POLAR URALS)
Autor: E. V. Sharkov
Publikováno v: Геодинамика и тектонофизика, Vol 10, Iss 1, Pp 101-121 (2019)
The Markov Deep (the axial part of the slow-spreading Mid-Atlantic Ridge, 6°N, Sierra Leone oceanic core complex) and the Paleozoic Voikar ophiolite association (Polar Urals) formed in the back-arc sea conditions. In both cases, the lower crust of a
Externí odkaz: https://doaj.org/article/8af51fdf69184d1ebc54895f41caba6f
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3
Ultramafic-alkaline-carbonatite complexes as a result of two-stage melting of mantle plume: evidence from the mid-paleoproterozoic Tiksheozero intrusion, Northern Karelia, Russia
Autor: E. V. Sharkov, A. V. Chistyakov, M. M. Bogina, O. A. Bogatikov, V. V. Shchiptsov, B. V. Belyatsky, P. V. Frolov
Publikováno v: Доклады Академии наук. 486:460-465
Tiksheozero ultramafic-alkaline-carbonatite intrusive complex, like numerous carbonatite-bearing complexes of similar composition, is a part of large igneous province, related to the ascent of thermochemical mantle plume. Our geochemical and isotopic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5582397b18d6051de3dad7e3f905bd63
https://doi.org/10.31857/s0869-56524864460-465
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4
Evolution of geological processes on the early earth and their impact on the early biosphere
Autor: E. V. Sharkov
Publikováno v: Paleontological Journal. 47:997-1000
Although life already existed in the Paleoarchean (ca. 3.8 Ga), rapid development of the biosphere began only in the Paleoproterozoic, from 2.4–2.3 Ga; this eventually resulted in the emergence of multicellular organisms. This event coincided in ti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6304e9557d64aa8a56e60d63e115511
https://doi.org/10.1134/s0031030113090177
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6
Mafic-ultramafic magmatism of the Early Precambrian (from the Archean to Paleoproterozoic)
Autor: E. V. Sharkov, M. M. Bogina
Publikováno v: Stratigraphy and Geological Correlation. 17:117-136
Compositional evolution of the Archean mafic-ultramafic volcanics is considered in comparison with evolution of the Paleoproterozoic volcanism using available data on the Baltic shield, Pilbara (Australia) and Superior (Canada) cratons, and the Isua
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dede11f62de6e050f121aa596f95a130
https://doi.org/10.1134/s0869593809020026
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7
Evolution of paleoproterozoic magmatism: Geology, geochemistry, and isotopic constraints
Autor: E. V. Sharkov, M. M. Bogina
Publikováno v: Stratigraphy and Geological Correlation. 14:345-367
Evolution of tectono-magmatic processes in the Paleoproterozoic is divisible into four stages each controlled by its own type of endogenic activity. The critical moment in geological history was at the third stage onset 2.05 Ga ago, when the Archean
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfd21b288f115ca2b9cbeb372ecef92f
https://doi.org/10.1134/s0869593806040010
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