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On Deep Structure, Properties of the Upper Mantle, and Volcanism of the Kuril-Kamchatka Island Arc According to Seismic Data (1968)
Fedotov S.A. On Deep Structure, Properties of the Upper Mantle, and Volcanism of the Kuril-Kamchatka Island Arc According to Seismic Data // The Crust and Upper Mantle of the Pacific Area. Washington, DC: American Geophysical Union. 1968. V. 12. P. 131-139. № doi:10.1029/GM012p0131.    Аннотация
The results of detailed seismic investigations during the period 1961 to 1964 are described. Accurate data of focus location for Kamchatka and the Commander Islands are cited. The majority of earthquakes are located in the Pacific focal zone and the others are found in such remarkable tectonic regions as the east Kamchatka ranges, the continental slope of the Commander Islands, etc. The focal zone seismic activity decreases with increasing depth. The seismic activity at a depth of 250 km is 100 times less than the activity at a depth of 0–20 km. Kamchatka earthquake locations in relation to the Kuril-Kamchatka Island arc and deep water trench are approximately the same as those of the south Kuril Island earthquakes. The Kamchatka active volcano belt coincides with the region of earthquakes having focal depths of 100–200 km, especially between 125 and 175 km. S-wave screening in the magma chambers under the volcanoes is observed. The Avacha volcanic cluster magma chamber at a depth of 20–80 km has the form of a column, 25 km in diameter. P-wave velocity in the upper mantle under the Pacific Ocean and between the Aleutian trench and the Kuril-Kamchatka trench is about 8.2 km/sec, and under Kamchatka 7.7 km/sec. Local velocity decreases to basaltic range (Vp = 72 km/sec) in the upper mantle at a depth near 70 km under the east Kamchatka active volcano belt.
On Precursor of Kamchatkan Volcanoes Eruptions Based on Data from Satellite Monitoring (2012)
Girina O.A. On Precursor of Kamchatkan Volcanoes Eruptions Based on Data from Satellite Monitoring // Journal of Volcanology and Seismology. 2012. V. 6. № 3. P. 142-149. doi: 10.1134/S0742046312030049.    Аннотация
Kamchatka is one of the most active volcanic regions on the planet. Large explosive volcanic eruptions, in which the ash elevates up to 8–15 km above sea level, occur here every 1.5 years. Study of eruptions precursors in order to reduce a volcanic risk for the population is an urgent problem of Volcanology. The available precursor of strong explosive eruptions of volcanoes, identified from satellite data (thermal anomaly), as well as examples of successful prediction of eruptions using this precursor, are represented in this paper.
On Some Features Peculiar to the September 22, 2005 Eruption of Young Shiveluch Volcano, Kamchatka (2014)
Girina O.A., Nuzhdaev A.A. On Some Features Peculiar to the September 22, 2005 Eruption of Young Shiveluch Volcano, Kamchatka // Journal of Volcanology and Seismology. 2014. V. 8. № 4. P. 218-227. doi: 10.1134/S0742046314040034.    Аннотация
An explosive eruption of Young Shiveluch Volcano occurred on September 22, 2005, discharging a pyroclastic flow about 20 km long in the Baidarnaya River valley and an ashfall in the area of the Northern group of volcanoes.
On a Possibility of Heat Utilization of the Avachinsky Volcanic Chamber (1976)
Fedotov S.A., Balesta S.T., Droznin V.A., Masurenkov Yu.P., Sugrobov V.M. On a Possibility of Heat Utilization of the Avachinsky Volcanic Chamber // Proceedings Second United Nations Symposium on the Development and Use of Geothermal Resources. 1976. V. 1. P. 363-369.    Аннотация
The sources of geothermal energy of Kamchatka are hydrothermal systems, local blocks of high heated rocks, and peripheral magma chambers of active volcanoes in particular. According to gravimetric, magnetic and seismic data, under the Avachinsky volcano there exists an anomalous zone which is suspected to be a peripheral magma chamber. It is localized at the boundary of the Upper Cretaceous basement and an overlying volcanogenous stratum at a depth of 1.5 km from sea level. Its geophysical data are as follows: the radius is 5.2±0.9 km; the density of rocks is 2.85 to 3.15 g/cm3, the velocity of longitudinal waves is 2200 m/sec, the viscosity of rocks is 105 to 108 poise. The temperature distribution in the near-chamber zone was calculated by clcctrointegrator at 0°C at the Earth's surface and 1000°C at the chamber surface for stationary and non-stationary (the period of 20 000 years) heating. Heat extraction may be possible if a system of artificial jointing iscreated. The capacity of a thermal reservoir with a volume of one cubic km at a depth of 5 km and a distance of 6 km from the volcano would be 2 x Ю14 kcal, extractable under non-stationary conditions, which could provide the work of power stations with a total capacity of 250 MW for a period of 100 years.
On deep structure properties of the upper mantle and volcanism of the Kuril Island arc (1966)
Fedotov S.A. On deep structure properties of the upper mantle and volcanism of the Kuril Island arc // Abstracts of papers related with geophysics: XI Pacific Science Congress: Proceedings. Tokyo. 1966. V. 3. P. 37
On probability of catastrophic explosive eruptions in the Kurile - Kamchatka volcanic area in future (1988)
Melekestsev I.V. On probability of catastrophic explosive eruptions in the Kurile - Kamchatka volcanic area in future // Kagoshima International Conference on Volcanoes. Abstracts. Kagoshima: 1988. P. 382
On some theoretical problems of Volcanology (1958)
Gorshkov G.S. On some theoretical problems of Volcanology // Bulletin of Volcanology. 1958. V. 19. № 1. P. 103-114. doi: 10.1007/BF02596600.
On the Relation of Volcanism and the Upper Mantle (1965)
Gorshkov G.S. On the Relation of Volcanism and the Upper Mantle // Bulletin Volcanologique. 1965. V. 28. P. 159-167.
On the Relationships of Water-Level Variations in the E-1 Well, Kamchatka to the 2008–2009 Resumption of Activity on Koryakskii Volcano and to Large (M ≥ 5) Earthquakes (2012)
Kopylova G.N., Boldina S.V. On the Relationships of Water-Level Variations in the E-1 Well, Kamchatka to the 2008–2009 Resumption of Activity on Koryakskii Volcano and to Large (M ≥ 5) Earthquakes // Journal of Volcanology and Seismology. 2012. V. 6. № 5. P. 312-328. doi: 10.1134/S074204631205003X.    Аннотация
Abstract—We discuss the water!level variations in the E!1 well for the time period between May 2006 and
2010, inclusive. A trend towards an increasing level at an abnormally high rate occurred from mid!2006 to
December 2009. This increase is regarded as the response of the aquifer of gas!saturated ground water that
exists in the volcanogenic–sedimentary deposits of the Avacha volcano!tectonic depression to volumetric
strain changes during the precursory period and the occurrence of a swarm of small earthquakes ( = 8.3)
in the area of Koryakskii Volcano and to its phreatic eruption. We estimated the volumetric compression as
Δε = –(4.1 × 10–6–1.5 × 10–5) from the amplitude of water!level rise using the elastic parameters of the wa!
ter!saturated rocks. While the strain source was active, we observed a decreasing sensitivity of the hydrologic
regime in the well to the precursory processes before large (M ≥ 5.0) tectonic earthquakes.
On the classification and terminology of Pelee and Katmai type eruptions (1962)
Gorshkov G.S. On the classification and terminology of Pelee and Katmai type eruptions // Bulletin of Volcanology. 1962. V. 24. P. 155-165.
On the origin of ignimbrites in relation to the study of recent eruptions (1963)
Gorshkov G.S. On the origin of ignimbrites in relation to the study of recent eruptions // Bulletin of Volcanology. 1963. V. 25. P. 33-37.
On the petrochemistry of volcanic rocks in connection with the formation of island arcs (1961)
Gorshkov G.S. On the petrochemistry of volcanic rocks in connection with the formation of island arcs // Publ. du Bureau Central Sasmol Intern. 1961. V. A. № 22.
On the possibility of using heat stored in the magma chamber of the Avachinsky volcano and the surrounding rock for heat and power supply (2007)
Fedotov S.A., Sugrobov V.M., Utkin I.S., Utkina L.I. On the possibility of using heat stored in the magma chamber of the Avachinsky volcano and the surrounding rock for heat and power supply // Journal of Volcanology and Seismology. 2007. V. 1. № 1. P. 28-41. doi:10.1134/S0742046307010022.    Аннотация
The results of geological and geophysical studies, including recent ones, which make it possible to verify the existence of a liquid magma chamber below the Avachinsky volcano on Kamchatka, and to estimate the chamber depth and approximate dimensions, are analyzed. The heat stored in the host rock heated by the volcanic magma chamber from the time of chamber origination to the present is estimated, taking variable chamber dimensions during the process of evolution into account. The geological-geophysical prerequisites for using the thermal energy of the heated rock which surrounds the magma chamber to supply heat and power to Petropavlovsk-Kamchatskii are analyzed. The creation of an underground geothermal circulation system (fracture heat exchanger) using deep boreholes is proposed.
http://repo.kscnet.ru/10/ [связанный ресурс]
On the relation between seismic and volcanic phenomena and the energy balance of the Bezymianny volcano eruption (1963)
Gorshkov G.S. On the relation between seismic and volcanic phenomena and the energy balance of the Bezymianny volcano eruption // Proc. 9th Pacific Sci. Congr. 1963. V. 12.
Operative remote sensing monitoring of Kamchatkan volcanoes using the information system VolSatView (2015)
Girina O.A., Lupian E.A., Sorokin A.A., Melnikov D.V., Manevich A.G. Operative remote sensing monitoring of Kamchatkan volcanoes using the information system VolSatView // 7th International Workshop on Volcanic Ash (IWVA/7), 19-23 October 2015. IWVA/7. 2015. P. 1-26.    Аннотация
There are 30 active volcanoes in the Kamchatka, and several of them are continuously active. In 2014-2015, four of the Kamchatkan volcanoes (Sheveluch, Klyuchevskoy, Karymsky and Zhupanovsky) had strong and moderate explosive eruptions.
Strong explosive eruption of volcanoes is the most dangerous for aircraft because in a few hours or days in the atmosphere and the stratosphere can produce about several cubic kilometers of volcanic ash and aerosols. Ash plumes and the clouds, depending on the power of the eruption, the strength and wind speed, can travel thousands of kilometers from the volcano for several days, remaining hazardous to aircraft, as the melting temperature of small particles of ash below the operating temperature of jet engines.
Annual Kamchatkan strong explosive eruptions with ash emissions by 8-15 km above sea level represent a real threat to modern jet aviation. To reduce the risk of aircraft encounters with volcanic ash clouds in the North Pacific region, since 2002, KVERT IVS FEB RAS conduct a daily satellite monitoring of 30 Kamchatkan volcanoes and visual and video monitoring of Klyuchevskoy, Sheveluch, Bezymianny, Koryaksky, Avachinsky, Mutnovsky and Gorely volcanoes. KVERT analyses seismic data for 9 volcanoes (Klyuchevskoy, Sheveluch, Bezymianny, Tolbachik, Kizimen, Karymsky, Koryaksky, Avachinsky and Gorely) from the Kamchatkan Branch of Geophysical Survey RAS.
KVERT send Volcano Observatory Notice for Aviation (VONA) by email to Airport Meteorological Center (AMC) at Yelizovo Airport; and the Tokyo Volcanic Ash Advisory Centers (VAAC), the Anchorage VAAC, the Washington VAAC, the Montreal VAAC, and the Darwin VAAC; aviation services, and scientists located throughout the North Pacific region. VONA/KVERT Releases are posted on the web site: http://www.kscnet.ru/ivs/kvert/
Since 2011, experts from IVS FEB RAS, Space Research Institute RAS, Computing Center FEB RAS and the Far Eastern Planeta Research Center have operated the information system “Monitoring of Volcanoes Activity in Kamchatka and the Kuriles” (VolSatView; http://volcanoes.smislab.ru) that uses all available satellite data (operative and long-term archive data), weather and on-ground observations, the results of computational modeling of ash clouds and plumes trajectories to ensure continues monitoring and study of volcanic activity in Kamchatka and the Kuriles.
Origin of scatter in paleomagnetic directions of samples from Gorely Volcano, Kamchatka, Russia (1994)
Riley Colleen Origin of scatter in paleomagnetic directions of samples from Gorely Volcano, Kamchatka, Russia. Western Washington University: Western Washington University. 1994. Дисс. докт. геол.-мин. наук. 70 p.    Аннотация
Lava flows from sixteen sites at Gorely Volcano, Kamchatka were sampled. Initial analysis showed high within-site scatter for NRM specimen directions. Alternating field and thermal demagnetization of specimens showed single-component magnetization indicating that specimens had not moved or were not exposed to changes in the magnetic field during acquisition of a magnetic direction. Scatter is thought to be either due to movement of the specimen with respect to the magnetic field or change in the magnetic field with respect to the specimen. Four factors were found that would contribute to scatter in specimen directions. These are 1) cooling rate, 2) range of unblocking temperatures, 3) relative time of emplacement, and 4) how the specimen moved or was affected by changes in the magnetic field. Only two sites showed that scatter was due to movement of the specimen. It appears that scatter in other sites resulted from changes in the magnetic field generated from a magma-induced electrical current due to lava flowing in the earth’s magnetic field. These changes in the magnetic field are shown to have more affect on material sampled at the surface than on material sampled at depth because massive interiors of flows showed less dispersion in specimen directions than levees or pull-aparts.
Origin of spatial compositional variations of volcanic rocks from Northern Kurile Islands: Geochemical studies of active volcanoes on Paramushir, Atlasova, Antsiferova islands and submarine volcanoes (2013)
Bergal-Kuvikas Olga, Nakagawa Mitsuhiro, Avdeiko Gennady Origin of spatial compositional variations of volcanic rocks from Northern Kurile Islands: Geochemical studies of active volcanoes on Paramushir, Atlasova, Antsiferova islands and submarine volcanoes // International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI). 2013, Kagoshima. Japan.. 2013.
Overview of the precursors and dynamics of the 2012–13 basaltic fissure eruption of Tolbachik Volcano, Kamchatka, Russia (2015)
Belousov Alexander, Belousova Marina, Edwards Benjamin, Volynets Anna, Melnikov Dmitry Overview of the precursors and dynamics of the 2012–13 basaltic fissure eruption of Tolbachik Volcano, Kamchatka, Russia // Journal of Volcanology and Geothermal Research. 2015. V. 307. P. 22 - 37. doi: 10.1016/j.jvolgeores.2015.06.013.    Аннотация
Abstract We present a broad overview of the 2012–13 flank fissure eruption of Plosky Tolbachik Volcano in the central Kamchatka Peninsula. The eruption lasted more than nine months and produced approximately 0.55 km3 {DRE} (volume recalculated to a density of 2.8 g/cm3) of basaltic trachyandesite magma. The 2012–13 eruption of Tolbachik is one of the most voluminous historical eruptions of mafic magma at subduction related volcanoes globally, and it is the second largest at Kamchatka. The eruption was preceded by five months of elevated seismicity and ground inflation, both of which peaked a day before the eruption commenced on 27 November 2012. The batch of high-Al magma ascended from depths of 5–10 km; its apical part contained 54–55 wt. SiO2, and the main body 52–53 wt. SiO2. The eruption started by the opening of a 6 km-long radial fissure on the southwestern slope of the volcano that fed multi-vent phreatomagmatic and magmatic explosive activity, as well as intensive effusion of lava with an initial discharge of > 440 m3/s. After 10 days the eruption continued only at the lower part of the fissure, where explosive and effusive activity of Hawaiian–Strombolian type occurred from a lava pond in the crater of the main growing scoria cone. The discharge rate for the nine month long, effusion-dominated eruption gradually declined from 140 to 18 m3/s and formed a compound lava field with a total area of ~ 36 km2; the effusive activity evolved from high-discharge channel-fed 'a'a lavas to dominantly low-discharge tube-fed pahoehoe lavas. On 23 August, the effusion of lava ceased and the intra-crater lava pond drained. Weak Strombolian-type explosions continued for several more days on the crater bottom until the end of the eruption around 5 September 2013. Based on a broad array of new data collected during this eruption, we develop a model for the magma storage and transport system of Plosky Tolbachik that links the storage zones of the two main genetically related magma types of the volcano (high-Al and high-Mg basalts) with the clusters of local seismicity. The model explains why precursory seismicity and dynamics of the 2012–13 eruption was drastically different from those of the previous eruption of the volcano in 1975–76.
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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.
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.





 

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