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Paleomagnetic chronostratigraphy of young eruptive series (1982)
Kochegura V.V., Zubov A.G. Paleomagnetic chronostratigraphy of young eruptive series // Abstracts: generation of major basalt types. August 15-22, 1982. Reykjavik, Island: IAVCEI-IAGC Scientific Assembly. 1982. V. 81.
Parametric analysis of lava dome-collapse events and pyroclastic deposits at Shiveluch volcano, Kamchatka, using visible and infrared satellite data (2018)
Krippner J., Belousov A., Belousova M., Ramsey M. Parametric analysis of lava dome-collapse events and pyroclastic deposits at Shiveluch volcano, Kamchatka, using visible and infrared satellite data // Journal of Volcanology and Geothermal Research. 2018. № 354. P. 115-129.
Parasitic eruption of Klyuchevskoy volcano (Predskazanny eruption, 1983) (1988)
Khrenov A.P., Ozerov A.Yu., Litasov N.E., Slezin Yu.B., Murav’ev Ya.D., Zharinov N.A. Parasitic eruption of Klyuchevskoy volcano (Predskazanny eruption, 1983) // Volcanology and Seismology. 1988. V. 7. P. 1-24.
Pb isotope composition of Klyuchevskoy volcano, Kamchatka and North Pacific sediments: Implications for magma genesis and crustal recycling in the Kamchatkan arc (1995)
Kersting Annie B., Arculus Richard J. Pb isotope composition of Klyuchevskoy volcano, Kamchatka and North Pacific sediments: Implications for magma genesis and crustal recycling in the Kamchatkan arc // Earth and Planetary Science Letters. 1995. V. 136. № 3–4. P. 133 - 148. doi: 10.1016/0012-821X(95)00196-J.    Аннотация
Pb isotope data are used to constrain the chemical contribution of the subducted components in the recycling beneath Klyuchevskoy volcano, the most active volcano in the Kamchatkan arc. The Pb isotope ratios of Klyuchevskoy basalts (206Pb/204Pb= 18.26–18.30, 207/Pb204Pb= 15.45–15.48, 208/Pb204Pb= 37.83–37.91) define a narrow range that falls within the Pacific mid-ocean ridge basalt (MORB) field and are among the least radiogenic island arc basalts measured to date. These data are similar to data from three other Quaternary Kamchatkan volcanoes: Tolbachik, Kumroch-Shish, and Maly Semiachik. In contrast, North Pacific sediments (primarily siliceous oozes) collected parallel to the Kamchatkan trench during Ocean Drilling Program Leg 145, have Pb isotope ratios (206Pb/204Pb= 18.51–18.78, 207Pb/204Pb= 15.56–15.64, 208Pb/204Pb= 38.49–38.75) that are more radiogenic than either the Klyuchevskoy basalts or Pacific MORB. Incorporation of even a small amount of sediment in the source of the Klyuchevskoy magmas would shift the Pb isotope ratios of the erupted basalts from the MORB field to more radiogenic values. The absence of 10Be and elevated Pb isotope ratios in the Kamchatkan volcanic lavas, despite the presence of distinctively radiogenic Pb in the North Pacific sediments makes it unlikely that sediments or sediment-derived fluids are involved in the source magmas beneath Kamchatka. The Kamchatkan arc thus represents an “end-member” whereby little or no sediment is involved in terms of elemental recycling and arc magma genesis. The major and trace elements, Pb, Sr and Nd isotope data of the Kamchatkan basalts are most consistently explained if derived from a fluid-fluxed, peridotitic mantle wedge source, wherein the fluid composition is dominantly controlled by dehydration of altered oceanic crust, imparting a radiogenic 87Sr/86Sr, and MORB-like Pb isotope signature to the mantle source. The erupted Klyuchevskoy lavas preserve a slab signature derived from incompatible elements that are strongly partitioned into the fluid. The 30 km of arc crust through which the Klyuchevskoy magmas traverse prior to eruption is not composed of older crust, but must be juvenile, similar in isotopic composition to MORB.
Periodic volcanic activity of Klyuchevskoy and Ushkovsky volcanoes during the early Holocene inferred from tephra study (2009)
Krasheninnikov Stepan, Portnyagin Maxim, Ponomareva V.V., Bergal-Kuvikas Olga, Mironov Nikita Periodic volcanic activity of Klyuchevskoy and Ushkovsky volcanoes during the early Holocene inferred from tephra study 2009.
Periodicities in the dynamics of eruptions of Klyuchevskoi Volcano, Kamchatka (2007)
Ozerov A.Yu., Firstov P.P., Gavrilov V.A. Periodicities in the dynamics of eruptions of Klyuchevskoi Volcano, Kamchatka // Geophysical Monograph Series. // Volcanism and Subduction: The Kamchatka Region. 2007. V. 172. P. 283-291.    Аннотация
Detailed studies of volcanic tremor envelopes with frequencies ranging from 5.5⋅10-6 to 2.5⋅10-2 Hz (50 hrs - 40 sec), recorded during the Klyuchevskoi volcano eruptions of 1983 and 1984, revealed five major frequencies: 1.1⋅10-2 Hz (T1 = 1 min 34 sec), 2.5⋅10-3 Hz (T2 = 6 min 10 sec), 4.2⋅10-4 Hz (T3 = 40 min), 5.1⋅10-5 Hz (T4 = 5 hrs 30 min), 7.7⋅10-6 Hz (T5 = 36 hrs), as well as superpositions of their harmonics. In the 1993 eruption, fluctuations in the volcanic tremor envelopes have frequencies of TI = 2 hrs 48 min and TII = 6 hrs 12 min, which correspond to periodicities in the dynamics of eruptions identified by visual observations since 1932. The distribution of peak amplitudes has been found to vary in relation to eruption intensity—increasing eruption strength correlates with an increase in the amplitude of low frequency peaks, and vice versa. It is concluded that volcanic tremor allows monitoring of eruption dynamics. Possible reasons for the occurrence of periodicities are discussed, but a comprehensive model for this phenomenon has not yet been developed.
Petrochemical Characteristics of Gorely Volcano (Southern Kamchatka) Magmatic Series (2010)
Gavrilenko M.G, Ozerov A.Yu. Petrochemical Characteristics of Gorely Volcano (Southern Kamchatka) Magmatic Series // “CoV6-Tenerife 2010” – Cities on Volcanoes 6, Puerto de la Cruz, Tenerife, Canary Islands, Spain May 31 - June 4, 2010. 2010.
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.    Аннотация
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
http://repo.kscnet.ru/463/ [связанный ресурс]
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.    Аннотация
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.
Petrology and volatile content of magmas erupted from Tolbachik Volcano, Kamchatka, 2012–13 (2015)
Plechov Pavel, Blundy Jon, Nekrylov Nikolay, Melekhova Elena, Shcherbakov Vasily, Tikhonova Margarita S. Petrology and volatile content of magmas erupted from Tolbachik Volcano, Kamchatka, 2012–13 // Journal of Volcanology and Geothermal Research. 2015. V. 307. P. 182 - 199. doi: 10.1016/j.jvolgeores.2015.08.011.    Аннотация
Abstract We report petrography, and bulk rock, mineral and glass analyses of eruptive products of the 2012–13 eruption of Tolbachik volcano, Central Kamchatka Depression, Russia. Magmas are shoshonitic in composition, with phenocrysts of olivine and plagioclase; clinopyroxene phenocrysts are scarce. Samples collected as bombs from the active vent, from liquid lava at the active lava front, and as naturally solidified “toothpaste” lava allow us to quantify changes in porosity and crystallinity that took place during 5.25 km of lava flow and during solidification. Olivine-hosted melt inclusions from rapidly-cooled, mm-size tephra have near-constant {H2O} contents (1.19 ± 0.1 wt) over a wide range of {CO2} contents (< 900 ppm), consistent with degassing. The groundmass glasses from tephras lie at the shallow end of this degassing trend with 0.3 wt {H2O} and 50 ppm CO2. The presence of small saturation, rather than shrinkage, bubbles testifies to volatile saturation at the time of entrapment. Calculated saturation pressures are 0.3 to 1.7 kbar, in agreement with the depths of earthquake swarms during November 2012 (0.6 to 7.5 km below the volcano). Melt inclusions from slowly-cooled and hot-collected lavas have {H2O} contents that are lower by an order of magnitude than tephras, despite comparable {CO2} contents. We ascribe this to diffusive {H2O} loss through olivine host crystals during cooling. The absence of shrinkage bubbles in the inclusions accounts for the lack of reduction in dissolved {CO2} (and S and Cl). Melt inclusions from tephras experienced < 3 wt post-entrapment crystallisation. Melt inclusion entrapment temperatures are around 1080 °C. Compared to magmas erupted elsewhere in the Kluchevskoy Group, the 2012–13 Tolbachik magmas appear to derive from an unusually H2O-poor and K2O-rich basaltic parent.
Petrology of Alaid volcano, north Kurile (1935)
Kuno H. Petrology of Alaid volcano, north Kurile // Japanese journal of geology and geography. 1935. V. 12. P. 153-162.
Petrophysical features of lava flows from Bezymyannyi volcano, Kamchatka (2012)
Ladygin V.М., Girina O.A., Frolova Yu.V. Petrophysical features of lava flows from Bezymyannyi volcano, Kamchatka // Journal of Volcanology and Seismology. 2012. V. 6. № 6. P. 341-351. doi: 10.1134/S074204631206005X.    Аннотация
This paper presents results from a study of lava flows that were discharged by Bezymyannyi Volcano at different times, from old (about 3500 years ago) to recent ones (1985–1989). We provide detailed descriptions of the composition, structure, and petrophysical properties for the main types of constituent rocks, which are andesites and basaltic andesites. It was found that porosity is the leading factor that controls rock properties, while the effects of structural and mineralogical features are less prominent. We demonstrate the variation in the properties of rocks that compose the lava flows in relation to their ages: the older a rock is, the higher its density and strength and the lower its porosity is.





 

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