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 P
Problems of using volcanic thermae of the Kurile-Kamchatka Island arc for Power (1960)
Averiev V.V., Ivanov V.V., Piip B.I. Problems of using volcanic thermae of the Kurile-Kamchatka Island arc for Power // Bulletin of Volcanology. 1960. V. 23. № 1. P. 257-263. doi: 10.1007/BF02596653.
Production of phreatic explosions in the interaction of lava and ice (1990)
Vinogradov V.N., Muravyev Y.D., Nikitina I.M., Salamatin A.N. Production of phreatic explosions in the interaction of lava and ice // Volcanology and Seismology. 1990. V. 9. № 1. P. 89-98.    Аннотация
A matematical model is given of the formation of phreatic explosions in lava flows coming into contact with ice formations. Quantitative characteristics are derived for the various stages in the development of the explosion; by means of wich its strength and other parameters may be evaluated. The theoretical calculation results are in agreement with empirical data.
Progress and problems in volcanology (1972)
Gorshkov G.S. Progress and problems in volcanology // Tectonophysics. 1972. V. 13. № 1-4. P. 123-140.
Propagation style controls lava-snow interactions (2014)
Edwards B. , Belousov A., Belousova M. Propagation style controls lava-snow interactions // Nature Communications. 2014. V. 5. № 56666. P. 1-5. doi: 10.1038/ncomms6666.
Pyroclastic deposits of the 1984-1989 eruptions of Bezymianny volcano (1994)
Girina O.A. Pyroclastic deposits of the 1984-1989 eruptions of Bezymianny volcano // Volcanology and Seismology. 1994. V. 15. № 4. P. 479-490.
Pyroclastic deposits of the Bezymianny eruption in October 1984 (1991)
Girina O.A. Pyroclastic deposits of the Bezymianny eruption in October 1984 // Volcanology and Seismology. 1991. V. 12. № 3. P. 407-417.
Pyroclastic deposits of the different stages the Bezymianny volcano activity (1995)
Girina O.A. Pyroclastic deposits of the different stages the Bezymianny volcano activity // The ’95 International workshop on volcanoes commemorating the 5-th anniversary of Mt. Showa-Shinzan. 1995. P. P 43
Pyroclastic surge deposits of Bezymianny volcano (1995)
Girina O.A. Pyroclastic surge deposits of Bezymianny volcano // IUGG. XXI General Assembly. Colorado. 1995. P. B 419
Pyroclastic surge deposits of Bezymianny volcano (1997)
Girina O.A. Pyroclastic surge deposits of Bezymianny volcano // Volcanology and Seismology. 1997. V. 18. № 5. P. 547-560.
Pyroclastic surges and flows from the 8-10 May 1997 explosive eruption of Bezymianny volcano, Kamchatka, Russia (2002)
Belousov Alexander, Voight Barry, Belousova Marina, Petukhin Anatoly Pyroclastic surges and flows from the 8-10 May 1997 explosive eruption of Bezymianny volcano, Kamchatka, Russia // Bulletin of Volcanology. 2002. V. 64. № 7. P. 455-471. doi:10.1007/s00445-002-0222-5.
 Q
Quaternary Calderas of Kamchatka (1969)
Zubin M.I., Melekestsev I.V., Tarakanovsky A.A., Erlich E.N. Quaternary Calderas of Kamchatka // International Association of Volcanology and Chemistry of the Earth`s Interior. Sumposium on Volcanoes &Their Roots. Oxford: 1969. P. 111-113.
 R
RESTful Web Service for Kamchatka Volcanoes Observations (2014)
Sorokin A.A., Korolev S.P., Romanova I.M., Girina O.A., Urmanov I.P. RESTful Web Service for Kamchatka Volcanoes Observations // Modern Information Technologies in Earth Sciences. Proceedings of the International Conference. September 8-13, 2014, Petropavlovsk-Kamchatsky. Vladivostok: Dalnauka. 2014. P. 155
Radiocarbon dating and tephrochronology in Kamchatka (1993)
Braitseva O.A., Sulerzhitsky L.D., Litasova S.N., Melekestsev I.V., Ponomareva V.V. Radiocarbon dating and tephrochronology in Kamchatka // Radiocarbon. 1993. V. 35. № 3. P. 463-476.    Аннотация
We discuss results of 14C dates obtained from areas of young volcanoes in Kamchatka. We apply these dates to reconstructing regional volcanic activity during the Holocene.
Radiocarbon dating of holocene eruptions of the Elbrus Volcano in the northern Caucasus, Russia (1998)
Bogatikov O.A., Melekestsev I.V., Gurbanov A.G., Sulerzhitskii L.D., Katov D.M., Puriga A.I. Radiocarbon dating of holocene eruptions of the Elbrus Volcano in the northern Caucasus, Russia // Doklady Earth Sciences. 1998. V. 363. № 8. P. 1093-1095.
http://repo.kscnet.ru/1114/ [связанный ресурс]
Radiocarbon dating of large Holocene volcanic events within South Kamchatka (Russian Far East) (2007)
Zaretskaya N.E., Ponomareva V.V., Sulerzhitsky L.D. Radiocarbon dating of large Holocene volcanic events within South Kamchatka (Russian Far East) // Radiocarbon. 2007. V. 49. № 2. P. 1065-1078.    Аннотация
Radiocarbon dating is widely used when studying recent volcanic activity in the Kamchatka Peninsula due to the abundance of organic matter that is associated with the volcanic deposits. Here, we present the results of 14C dating of major volcanic events within the active South Kamchatka volcanic zone. South Kamchatka includes 8 recently active volcanic centers (stratovolcanoes, calderas, and large craters) that have been erupting during the Holocene. Their tephras represent useful markers for both the southern part of the peninsula and the Northern Kurile Islands. Since these marker tephra layers facilitate stratigraphic and tephrochronological studies in this area, it was important to determine their ages. We have obtained 73 new individual 14C dates on paleosol, peat, charcoal, and wood associated with the marker tephra layers, then complemented these data with 37 earlier published dates and analyzed the resulting data set. We selected the reliable dates and then obtained average 14C ages of marker tephra layers. The details of these procedures, as well as brief descriptions of South Kamchatka Holocene eruptions and their tephra beds, are presented in the paper.
Rapid changes in magma storage beneath the Klyuchevskoy group of volcanoes inferred from time-dependent seismic tomography (2013)
Koulakov Ivan, Gordeev Evgeniy I., Dobretsov Nikolay L., Vernikovsky Valery A., Senyukov Sergey, Jakovlev Andrey, Jaxybulatov Kayrly Rapid changes in magma storage beneath the Klyuchevskoy group of volcanoes inferred from time-dependent seismic tomography // Journal of Volcanology and Geothermal Research. 2013. V. 263. P. 75 - 91. doi: 10.1016/j.jvolgeores.2012.10.014.    Аннотация
We present the results of time-dependent local earthquake tomography for the Kluchevskoy group of volcanoes in Kamchatka, Russia. We consider the time period from 1999 to 2009, which covers several stages of activity of Kluchevskoy and Bezymianny volcanoes. The results are supported by synthetic tests that recover a common 3D model based on data corresponding to different time windows. Throughout the period, we observe a robust feature below 25 km depth with anomalously high Vp/Vs values (up to 2.2). We interpret this feature as a channel bringing deep mantle materials with high fluid and melt content to the bottom of the crust. This mantle channel directly or indirectly determines the activity of all volcanoes of the Kluchevskoy group. In the crust, we model complex structure that varies over time. During the pre-eruptive period, we detected two levels of potential magma storage: one in the middle crust at 10–12 km depth and one close to the surface just below Kluchevskoy volcano. In 2005, a year of powerful eruptions of Kluchevskoy and Besymiyanny volcanoes, we observe a general increase in Vp/Vs throughout the crust. In the relaxation period following the eruption, the Vp/Vs values are generally low, and no strong anomalous zones in the crust are observed. We propose that very rapid variations in Vp/Vs are most likely due to abrupt changes in the stress and deformation states, which cause fracturing and the active transport of fluids. These fluids drive more fracturing in a positive feedback system that ultimately leads to eruption. We envision the magma reservoirs beneath the Kluchevskoy group as sponge-structured volumes that may quickly change the content of the molten phases as fluids pulse rapidly through the system.
Recent eruptions at Bezymianny volcano — a seismological comparison (2013)
West Michael E. Recent eruptions at Bezymianny volcano — a seismological comparison // Journal of Volcanology and Geothermal Research. 2013. V. 263. P. 42 - 57. doi: 10.1016/j.jvolgeores.2012.12.015.    Аннотация
Abstract For the past few decades, Bezymianny volcano has erupted once to twice per year. Here, I examine eight eruptive events between 2006 and 2010. This is the first time period for which proximal or broadband seismic data have been recorded at Bezymianny. Several recurring patterns are demonstrated in advance of eruptions. Eruptions are generally preceded by 12–36 h of tremor energy elevated by 2 to 3 orders of magnitude. Locatable earthquake activity is quite erratic in the days before eruptions. For eruptions of juvenile magma, however, the cumulative moment magnitude increases with the repose time since the previous eruption. Though tenuous, this relationship is statistically significant and could improve forecasts of Bezymianny eruptions. The most energetic eruptions demonstrate increasing multiplet activity in the run-up, followed by a rapid cessation at the time of eruption. When present, this behavior marks increasing pressure in the conduit system as degassing eclipses the capacity for venting. Very long period seismicity (> 20 s periods) accompanies some eruptions. These tend to be the same short-lived high-energy eruptions that exhibit multiplet precursors. Four eruptions are examined in detail to illustrate the variety in eruption mechanisms. Lava dome collapses, sustained eruptions, singular paroxysmal explosions and post-explosion lava flows occur in different combinations demonstrating that more than one eruption trigger is regulating Bezymianny. Compared to Bezymianny's fifty-year modern history, recent eruptions have been shorter-lived and separated by longer repose times. Some evidence suggests that these eruptions may be increasingly explosive—a speculation that carries significant hazard implications. If true, however, this threat is tempered by solid evidence that the most explosive eruptions are preceded by the clearest precursors, suggesting an ability to improve the already excellent eruption forecasts available for Bezymianny.
Reconstruction of the eruptive activity of Momotombo volcano (Nicaragua) to assess volcanic hazards (1988)
Kirianov V.Yu., Melekestsev I.V., Andreev V.N., Ovsyannikov A.A. Reconstruction of the eruptive activity of Momotombo volcano (Nicaragua) to assess volcanic hazards // Kagoshima International Conference on Volcanoes: Proceedings of the International Conference on Volcanoes, Japan, Kagoshima, 19-23 July 1988. Kagoshima: Kagoshima Prefectural Government. 1988. P. 495-498.
Records of sea-ice extent and air temperature at the Sea of Okhotsk from an ice core of Mount Ichinsky, Kamchatka (2011)
Matoba S., Shiraiwa T., Tsushima A., Sasaki H., Muravyev Y.D. Records of sea-ice extent and air temperature at the Sea of Okhotsk from an ice core of Mount Ichinsky, Kamchatka // Annaly of Glaciology . 2011. V. 52. № 58. P. 44-50. doi: 10.3189/172756411797252149.    Аннотация
The Sea of Okhotsk is the southernmost area in the Northern Hemisphere where seasonal sea ice is produced every year. The formation of sea ice drives thermohaline circulation in the Sea of Okhotsk, and this circulation supports the high productivity in the region. However, recent reports have indicated that sea-ice production in the Sea of Okhotsk is decreasing, raising concern that the decreased sea ice will affect not only circulation but also biological productivity in the sea. To reconstruct climatic changes in the Sea of Okhotsk region, we analyzed an ice core obtained from Ichinskaya Sopka (Mount Ichinsky), Kamchatka. We assumed that the remarkable negative peaks of δD in the ice core were caused by expansion of sea ice in the Sea of Okhotsk. Melt feature percentage (MFP), which indicates summer snowmelt, showed high values in the 1950–60s and the mid-1990s–2000s. The high MFP in the 1950–60s was assumed to be caused by an increase in cyclone activity reaching Kamchatka during a negative period of the Pacific Decadal Oscillation index, and that in the 1990–2000s may reflect the increase in solar irradiation during a positive period of the summer Arctic Oscillation index.
Reduced carbonic fluid and possible nature of high-K magmas of Tolbachik (2015)
Simakin Alexander, Salova Tamara, Devyatova Vera, Zelensky Michael Reduced carbonic fluid and possible nature of high-K magmas of Tolbachik // Journal of Volcanology and Geothermal Research. 2015. V. 307. P. 210 - 221. doi: 10.1016/j.jvolgeores.2015.10.018.    Аннотация
Abstract Historical basaltic eruptions of Tolbachik volcano (Kamchatka) are of a medium to high potassic type. The potassic character of magmatism can be attributed to the influence of CO2–CO-rich fluid at or near the magma generation depths. Decarbonatization reactions in the mantle under Tolbachik producing a column of the carbonic fluids may be connected with the recent accretion of Kronotsky paleoarc with carbonates dragged under the mantle wedge. With thermodynamic modeling, we show that reduced carbonic fluid at fO2 < {NNO} may be a good carrier of nickel transported in the form of Ni(CO)4. This carbonyl is expected to become thermally stable near the magmatic temperatures at pressures above 1 GPa. In the crust, it is predicted to be thermally stable within the {PT} field of the amphibolite facies. We connect the particles of native Ni and Ag–Pt alloy observed in the volcanic aerosols from the 2012–13 Tolbachik eruption with flushing of the ascending Tolbachik magma with reduced carbonic fluids enriched with {PGE} and Ni. Native metals may form by the thermal decomposition of the carbonyls and other carbon-bearing compounds dissolved in the fluid.





 

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