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Petrochemical features of volcanism in relation to the types of the Earth's crust (1962)
Gorshkov G.S. Petrochemical features of volcanism in relation to the types of the Earth's crust // The Crust of the Pacific Basin // Geoph. Monograph. 1962. V. 6. P. 110-115.
Petrochemistry of volcanic rocks in relation to the formation of island arcs (1961)
Gorshkov G.S. Petrochemistry of volcanic rocks in relation to the formation of island arcs // Annali di Geofisica. 1961. V. 14. № 2.
Petrochemistry of volcanic rocks in the Kurile Islands arc with some generalizations on volcanism (1973)
Gorshkov G.S. Petrochemistry of volcanic rocks in the Kurile Islands arc with some generalizations on volcanism // The Western Pacific: Island Arcs, Marginal Seas, Geochemistry. 1973. P. 459-467.
Petrological and Geochemical Characteristics of Magmatic Melts at Gorely Volcano, Kamchatka, Russia (2006)
Gavrilenko M.G., Ozerov A.Yu., Kyle P.R., Eichelberger J.C. Petrological and Geochemical Characteristics of Magmatic Melts at Gorely Volcano, Kamchatka, Russia // AGU Fall Meeting 2006. Eos Trans. AGU, 87(52), Fall Meet. Suppl., Abstracts. 2006. P. V11A-0558.
Petrological and geochemical evolution of the Tolbachik volcanic massif, Kamchatka, Russia (2015)
Churikova Tatiana G., Gordeychik Boris N., Iwamori Hikaru, Nakamura Hitomi, Ishizuka Osamu, Nishizawa Tatsuji, Haraguchi Satoru, Miyazaki Takashi, Vaglarov Bogdan S. Petrological and geochemical evolution of the Tolbachik volcanic massif, Kamchatka, Russia // Journal of Volcanology and Geothermal Research. 2015. V. 307. P. 156 - 181. doi: 10.1016/j.jvolgeores.2015.10.026.    Annotation
Data on the geology, petrography, and geochemistry of Middle–Late-Pleistocene rocks from the Tolbachik volcanic massif (Kamchatka, Klyuchevskaya group of volcanoes) are presented and compared with rocks from the neighboring Mount Povorotnaya, Klyuchevskaya group basement, and Holocene–historical Tolbachik monogenetic cones. Two volcanic series of lavas, middle-K and high-K, are found in the Tolbachik massif. The results of our data analysis and computer modeling of crystallization at different P–T–H2O–fO2 conditions allow us to reconstruct the geochemical history of the massif. The Tolbachik volcanic massif started to form earlier than 86 ka based on K–Ar dating. During the formation of the pedestal and the lower parts of the stratovolcanoes, the middle-K melts, depleted relative to NMORB, fractionated in water-rich conditions (about 3 of H2O). At the Late Pleistocene–Holocene boundary, a large fissure zone was initiated and the geodynamical regime changed. Upwelling associated with intra-arc rifting generated melting from the same mantle source that produced magmas more enriched in incompatible trace elements and subduction components; these magmas are high-K, not depleted relative to N-MORB melts with island arc signatures and rift-like characteristics. The fissure opening caused degassing during magma ascent, and the high-K melts fractionated at anhydrous conditions. These high-K rocks contributed to the formation of the upper parts of stratovolcanoes. At the beginning of Holocene, the high-K rocks became prevalent and formed cinder cones and associated lava fields along the fissure zone. However, some features, including 1975–1976 Northern Breakthrough, are represented by middle-K high-Mg rocks, suggesting that both middle-K and high-K melts still exist in the Tolbachik system. Our results show that fractional crystallization at different water conditions and a variably depleted upper mantle source are responsible for all observed variations in rocks within the Tolbachik volcanic massif. Sr–Nd isotopes are consistent with 2–4 crustal assimilation during formation of the pedestal and stratovolcanoes, while the young lava fields do not show evidence of crustal assimilation. Major and trace element data coupled with K–Ar dating provide strong evidence that Mount Povorotnaya, located in 8 km northeast of Plosky Tolbachik, is an old block of the Tolbachik massif pedestal and for the moment it is the oldest (306 ka) known object in Klyuchevskaya group of volcanoes.
Petrological constraints on the mechanisms of catastrophic explosive eruptions of andesitic and acid magmas (2011)
Maximov A.P. Petrological constraints on the mechanisms of catastrophic explosive eruptions of andesitic and acid magmas // 7 th Biennual Workshop on Japan-Kamchatka-Alaska Subduction Processes: Mitigating Risk Through International Volcano, Earthquake, and Tsunami Science (JKASP-2011). August 25-30, 2011, Petropavlovsk-Kamchatsky. 2011. P. 257-258.
Petrological–Geochemical Model for Genetic Relationships between Basaltic and Andesitic Magmatism of Klyuchevskoi and Bezymyannyi Volcanoes, Kamchatka (1997)
Ozerov A.Yu., Ariskin A.A., Kyle Ph., Bogoyavlenskaya G.E., Karpenko S.F. Petrological–Geochemical Model for Genetic Relationships between Basaltic and Andesitic Magmatism of Klyuchevskoi and Bezymyannyi Volcanoes, Kamchatka // Petrology. 1997. V. 5. № 6. P. 550–569
Petrology and geochemistry of mafic enclaves from Shiveluch volcano, Kamchatka (2018)
Goltz A.E., Krawczynsky M.J., Gavrilenko M.G, Gorbach N.V., Ruprecht Ph. Petrology and geochemistry of mafic enclaves from Shiveluch volcano, Kamchatka // Goldschmidt2018 Abstract. Boston, USA: 2018.
Petrology and geochemistry of the New Tolbachik Fissure Eruption volcanic rocks and their evolution during the first two weeks of eruption (2013)
Volynets Anna, Melnikov Dmitry, Yakushev Anton, Tolstykh Maria Petrology and geochemistry of the New Tolbachik Fissure Eruption volcanic rocks and their evolution during the first two weeks of eruption // IAVCEI 2013 Scientific Assembly. July 20 - 24, Kagoshima, Japan. 2013. P. 743
Petrology and geochemistry of the Tolbachik stratovolcano (2014)
Churikova Tatiana, Gordeychik Boris, Iwamori Hikaru, Nakamura Hitomi, Nishizawa Tatsuji, Haraguchi Satoru, Yasukawa Kazatuka, Ishizuka Osamu Petrology and geochemistry of the Tolbachik stratovolcano // 8th Biennial Workshop on Japan-Kamchatka-Alaska Subduction Processes. Finding clues for science and disaster mitigation from international collaboration (JKASP-2014). 22-26 September 2014, Sapporo, Japan. 2014. P. 1-3.    Annotation
The numerous of national and international publications were dedicated to Plosky Tolbachik volcano eruptions and adjacent monogenetic cones, which were erupted repeatedly during Holocene, including historical time [i.e. Vlodavets, 1937; Popkov, 1946; Peep, 1946, 1954; Menyailov, 1953; Sirin and Farberov, 1963; Kirsanov et al., 1974; Ivanov and Khrenov, 1979; Fedotov, 1984; Krivenko, 1990; Kersting, 1995; Tatsumi et al., 1995; Hochstaedter et al., 1996; Kepezhinskas et al., 1997; Turner et al., 1998; Pineau et al., 1999; Volynets et al., 2000; Churikova et al., 2001; Münker et al., 2004; Portnyagin et al., 2007; Volynets et al., 2013]. However, all these data mainly relates to monogenetic cones, but the information on stratovolcanoes itself practically absent. There are only few papers on Ostry and Plosky Tolbachik stratovolcanoes focusing on geology [Ermakov and Vazheevskaya, 1973], petrography and some petrochemistry of the rocks [Ermakov, 1977; Flerov and Melekestsev, 2013]. The modern geochemical and isotope studies of the stratovolcanoes were never achieved. In this report we present geological, petrographical, petrochemical, geochemical and some K-Ar data on the rocks of Tolbachik massif. The present report based on representative collection of 154 samples from stratovolcanoes, dikes, monogenetic cones of different ages, including last 2012-2013 eruption. Additionally our study included samples separately standing edifice of Povorotnaya mount, which age according to K-Ar dating is 0.306±0.01 Ма.





 

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