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Records: 2385
 I
Information system «Volcanoes of the Kurile-Kamchatka Island Arc» (2015)
Romanova I.M., Girina O.A., Melekestsev I.V., Maximov A.P. Information system «Volcanoes of the Kurile-Kamchatka Island Arc» / National report for the International Association of Volcanology and Chemistry of the Earth’s Interior of the International Union of Geodesy and Geophysics 2011–2014. Presented to the XXVI General Assembly of the IUGG. Geoinf. Res. Papers. Moscow: Geophysical center RAS. 2015. Vol. 3. P. 118-119. doi: 10.2205/2015IUGG-RU-IAVCEI.
Infrasound from the 2012–2013 Plosky Tolbachik, Kamchatka fissure eruption (2015)
Albert Sarah, Fee David, Firstov Pavel, Makhmudov Evgeniy, Izbekov Pavel Infrasound from the 2012–2013 Plosky Tolbachik, Kamchatka fissure eruption // Journal of Volcanology and Geothermal Research. 2015. Vol. 307. P. 68 - 78. doi: 10.1016/j.jvolgeores.2015.08.019.    Annotation
Abstract We use both regional and local infrasound data to investigate the dynamics of the 2012–2013 eruption of Tolbachik Volcano, Kamchatka, Russia during select periods of time. Analysis of regional data recorded at the {IMS} array {IS44} in southern Kamchatka, ~ 384 km from the vent focuses on the eruption onset in November 2012, while analysis of local data focuses on activity in February and August 2013. Signals recorded from Tolbachik suggest a change in eruptive intensity possibly occurred from November 27–30, 2012. Local infrasound data recorded at distances of 100–950 m from the vent are characterized primarily by repeated, transient explosion signals indicative of gas slug bursts. Three methods are employed to pick slug burst events in February and August. The nature of slug bursts makes a monopole acoustic source model particularly fitting, permitting volume outflux and slug radius calculations for individual events. Volume outfluxes and slug radii distributions provide three possible explanations for the eruption style of Tolbachik Volcano from mid-February to late August. Cumulative outflux for slug bursts (i.e. mass of emissions from individual bursts) derived by infrasound for both February and August range from < 100 to ~ 3000 kg. These values are greater than infrasound-derived emissions calculated at Pacaya Volcano, but less than those calculated at Mt. Erebus Volcano. From this, we determine slug bursts at Tolbachik Volcano in February and August were larger on average than those at Pacaya Volcano in 2010, but smaller on average than those at Mt. Erebus in 2008. Our overall emissions estimates are in general agreement with estimates from satellite observations. This agreement supports the monopole source inversion as a potential method for estimating mass of emissions from slug burst events.
Integration of volcanological data in VOKKIA information system (2016)
Romanova I.M., Girina O.A., Maximov A.P., Vasiliev S.E. Integration of volcanological data in VOKKIA information system // Modern Information Technologies in Earth Sciences. Proc. of the VI International Conference, Yuzhno-Sakhalinsk, August 7-11, 2016. Vladivostok: Dalnauka. 2016. P. 65-66.
International Coordination in Managing Airborne Ash Hazards: Lessons from the Northern Pacific (2017)
Igarashi Yohko, Girina O.A., Osiensky Jeffrey, Moore Donald International Coordination in Managing Airborne Ash Hazards: Lessons from the Northern Pacific / Advances in Volcanology. 2017. P. 529-547. doi: 10.1007/11157_2016_45.    Annotation
Airborne volcanic ash is one of the most common, far-travelled, direct hazards associated with explosive volcanic eruptions worldwide. Management of volcanic ash cloud hazards often requires coordinated efforts of meteorological, volcanological, and aviation authorities from multiple countries. These international collaborations during eruptions pose particular challenges due to variable crisis response protocols, uneven agency responsibilities and technical capacities, language differences, and the expense of travel to establish and maintain relationships over the long term. This report introduces some of the recent efforts in enhancing international cooperation and collaboration in the Northern Pacific region.
Intra-oceanic Islands, East Pacific Ridge, Islands arcs: volcanism and upper mantle (1969)
Gorshkov G.S. Intra-oceanic Islands, East Pacific Ridge, Islands arcs: volcanism and upper mantle / Tectonophysics. // Tectonophysics. 1969. № 8. P. 213-221. doi: 10.1016/0040-1951(69)90098-5.
Introduction to the 2012–2013 Tolbachik eruption special issue (2015)
Edwards Benjamin R., Belousov Alexander, Belousova Marina, Volynets Anna Introduction to the 2012–2013 Tolbachik eruption special issue // Journal of Volcanology and Geothermal Research. 2015. Vol. 307. P. 1 - 2. doi: 10.1016/j.jvolgeores.2015.12.001.
Isotopic and Petrologic Investigation, and a Thermomechanical Model of Genesis of Large-Volume Rhyolites in Arc Environments: Karymshina Volcanic Complex, Kamchatka, Russia (2019)
Bindeman I.N., Leonov V.L., Colon D.P., Rogozin Aleksei, Shipley N.K., Jicha B.R., Loewen M.W., Gerya T.V. Isotopic and Petrologic Investigation, and a Thermomechanical Model of Genesis of Large-Volume Rhyolites in Arc Environments: Karymshina Volcanic Complex, Kamchatka, Russia // Frontiers in Earth Science/Volcanology. 2019. Vol. 6. № 238. doi: 10.3389/feart.2018.00238.    Annotation
The Kamchatka Peninsula of eastern Russia is currently one of the most volcanically active areas on Earth where a combination of > 8 cm/yr subduction convergence rate and thick continental crust generates large silicic magma chambers, reflected by abundant large calderas and caldera complexes. This study examines the largest center of silicic 4-0.5 Ma Karymshina Volcanic Complex, which includes the 25 × 15 km Karymshina caldera, the largest in Kamchatka. A series of rhyolitic tuff eruptions at 4 Ma were followed by the main eruption at 1.78 Ma and produced an estimated 800 km3 of rhyolitic ignimbrites followed by high-silica rhyolitic post-caldera extrusions. The postcaldera domes trace the 1.78 Ma right fracture and form a continuous compositional series with ignimbrites. We here present results of a geologic, petrologic, and isotopic study of the Karymshina eruptive complex, and present new Ar-Ar ages, and isotopic values of rocks for the oldest pre- 1.78 Ma caldera ignimbrites and intrusions, which include a diversity of compositions from basalts to rhyolites. Temporal trends in δ18O, 87Sr/86Sr, and 144Nd/143Nd indicate values comparable to neighboring volcanoes, increase in homogeneity, and temporal increase in mantle-derived Sr and Nd with increasing differentiation over the last 4 million years. Data are consistent with a batholithic scale magma chamber formed by primarily fractional crystallization of mantle derived composition and assimilation of Cretaceous and younger crust, driven by basaltic volcanism and mantle delaminations. All rocks have 35–45% quartz, plagioclase, biotite, and amphibole phenocrysts. Rhyolite-MELTS crystallization models favor shallow (2 kbar) differentiation conditions and varying quantities of assimilated amphibolite partial melt and hydrothermally-altered silicic rock. Thermomechanical modeling with a typical 0.001 km3/yr eruption rate of hydrous basalt into a 38 km Kamchatkan arc crust produces two magma bodies, one near the Moho and the other engulfing the entire section of upper crust. Rising basalts are trapped in the lower portion of an upper crustal magma body, which exists in a partially molten to solid state. Differentiation products of basalt periodically mix with the resident magma diluting its crustal isotopic signatures. At the end of the magmatism crust is thickened by 8 km. Thermomechanical modeling show that the most likely way to generate large spikes of rhyolitic magmatism is through delamination of cumulates and mantle lithosphere after many millions of years of crustal thickening. The paper also presents a chemical dataset for Pacific ashes from ODDP 882 and 883 and compares them to Karymshina ignimbrites and two other Pleistocene calderas studied by us in earlier works.
 K
KVERT Project: Danger for Aviation during Eruptions of Kamchatkan Volcanoes in 2009-2010 (2011)
Girina O.A., Manevich A.G., Melnikov D.V., Ushakov S.V., Nuzhdaev A.A., Konovalova O.A., Demyanchuk Yu.V. KVERT Project: Danger for Aviation during Eruptions of Kamchatkan Volcanoes in 2009-2010 // Abstracts. International Workshop “JKASP-7”. Petropavlovsk-Kamchatsky. August 25-30. 2011. Petropavlovsk-Kamchatsky: IVS FED RAS. 2011. P. 29-30.
KVERT Project: Danger for Aviation during Eruptions of Kamchatkan and Northern Kuriles Volcanoes in 2006-2008 (2009)
Girina O.A., Ushakov S.V., Manevich A.G., Nuzhdaev A.A., Melnikov D.V., Malik N.A. KVERT Project: Danger for Aviation during Eruptions of Kamchatkan and Northern Kuriles Volcanoes in 2006-2008 // Mitigating natural hazards in active arc environments. Abstracts. 6rd Biennial Workshop on Japan- Kamchatka-Alaska Subduction Processes (JKASP-2009). Fairbanks. June 22-26. 2009. P. 54
KVERT предупреждает Или о том, для чего на Камчатке создана группа реагирования на вулканические извержения (2012)
Гирина О.А. KVERT предупреждает Или о том, для чего на Камчатке создана группа реагирования на вулканические извержения // Дальневосточный ученый. Владивосток: ДВО РАН. 2012. Вып. 1444. № 2. С. 4 doi: ПИ № ФС77-50070.



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