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Количество записей: 1806
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Fedotov S.A., Chirkov A.M. The large fissure eruption in the region of Plosky Tolbachik volcano in Kamchatka, 1975–1976 // Bulletin Volcanologique. 1980. V. 43. № 1. P. 47-60. doi: 10.1007/BF02597610.    Аннотация
The paper describes the course of the Large Tolbachik fissure eruption taking place in Kamchatka from July 6, 1975 to December 10, 1976. The eruption zone extended for 30 km. The formation of monogenic scoria cones nearly 300 m high, lava tubes and basalt sheets up to 80 m thick and more than 40 km2 in area and subsidence of the Plosky Tolbachik summit caldera to a depth of more than 400 m were observed during the eruption. The volume of eruption products amounted to more than 2 km3. It was the largest basalt eruption which has taken place in the Kurile-Kamchatka volcanic belt in historic time.
Fedotov S.A., Gorelchik V.I., Stepanov V.V. Seismological Studies on the Mechanism of the Large Tolbachik Fissure Eruption, 1975-1976 // Bulletin Volcanologique. 1980. V. 43. № 1. P. 73-84.    Аннотация
Seismological observations provided consistent information on the course and mechanism of the complicated large fissure eruption at Tolbachik volcano in Kamchatka from July 6, 1975 to December 10, 1976. Seismicity indicates that the initial magnesian basalts were rising ten days before the eruption from depths of more than 20 km. The formation of new feeding dykes was accompanied by earthquake swarms which decreased sharply one to two days before the opening of new eruptive fissures. The seismological data indicate that the main source of the different erupted basalts (2 km) was a vast system (diameter ca. 80 km) of hydraulically connected magma
chambers located in the lower crustal layers or in the crust-mantle transition layer.
Fedotov S.A., Gorelchik V.I., Zharinov N.A. Deformations and earthquakes of Kliuchevskoi Volcano: a model of its activity // Comptes rendus of the XIX General Assembly of the I.U.G.G.: Vancouver, August 9-22, 1987. 1987. V. 2. P. 392
Fedotov S.A., Ivanov B.V. The Main Eruptions of Volcanoes in Kamchatka and Kurile Islands in the 1980 // Comptes rendus of the XIX General Assembly of the I.U.G.G.: Vancouver, August 9-22, 1987. 1987. V. 2. P. 422
Fedotov S.A., Khrenov A.P., Zharinov N.A. Le Volcan Klychevskoy: son Activite de 1932 a 1988 et son Developpement Possible // L` Association Volcanologique Europeenne. 1989. № 18. P. 11-24.
Fedotov S.A., Markhinin Ye.K. The Great Tolbachik Fissure Eruption: Geological and Geophysical Data 1975–1976. Cambridge: Cambridge University Press. 1983. 354 p.    Аннотация
In 1975–1976 a remarkable volcanic eruption took place on the Kamchtka peninsula, part of the Soviet Union's arc of active volcanoes. Dr Fedotov and his colleagues studied the largest basaltic eruption in history, one of the most important volcanic events in the twentieth century. During this prolonged eruption they carried out extensive seismological, geophysical, geodetic and geochemical investigations. The results of this detailed and thorough investigation were collected as a series of papers under the editorship of S. A. Fedotov and collected into this volume, which was originally published by Cambridge in 1983. The result is a classic descriptive work of a major volcanic eruption.
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]
Fedotov S.A., Tocarev P.I. Earthquakes, properties of the upper mantle, and their connections with volcanism in Kamchatka // The Crust and Upper Mantle of the Pacific Area. // ХV Генеральная ассамблея Международного геодезического и геофизического союза. , Москва. 1971.
Fedotov S.A., Zharinov N.A., Gontovaya L.I. The magmatic system of the Klyuchevskaya group of volcanoes inferred from data on its eruptions, earthquakes, deformation, and deep structure // Journal of Volcanology and Seismology. 2010. Т. 4. № 1. С. 1-33. doi:10.1134/S074204631001001X.    Аннотация
Abstract-The study of magmatic plumbing systems of volcanoes (roots of volcanoes) is one of the main tasks facing volcanology. One major object of this research is the Klyuchevskaya group of volcanoes (KGV), in Kamchatka, which is the greatest such group that has been found at any island arc and subduction zone. We summarize the comprehensive research that has been conducted there since 1931. Several conspicuous results derived since the 1960s have been reported, emerging from the study of magma sources, eruptions, earthquakes, deformation, and the deep structure for the KGV. Our discussion of these subjects incorporates the data of physical volcanology relating to the mechanism of volcanic activity and data from petrology as to magma generation. The following five parts can be distinguished in the KGV plumbing system and the associated geophysical model: the source of energy and material at the top of the Pacific Benioff zone at a depth of about 160 km, the region of magma ascent in the asthenosphere. the region of magma storage in the crust-mantle layer at depths of 40-25 km,
magma chambers and channelways in the crust, and the bases of volcanic edifices. We discuss and explain the properties of and the relationships between these parts and the mechanisms of volcanic activity and of the KGV plumbing system as they exist today. Methods for calculating magma chambers and conduits, the amount of magma in the system, and its other properties are available.

Изучение магматических питающих систем вулканов, корней вулканов, является одной из основных задач вулканологии. К числу главных объектов таких исследований принадлежит Ключевская группа вулканов (КГВ) наиболее мощная на островных дугах и в зонах поддвига литосферных плит. Сообщается о всесторонних исследованиях, которые ведутся здесь с 1931 г. Приводится ряд показательных результатов, полученных с 1960-х годов при изучении источников магм, извержений, землетрясений, деформаций и глубинного строения КГВ. При их рассмотрении учитываются данные физической вулканологии о механизме вулканической деятельности и данные петрологии о формировании магм. В магматической питающей системе КГВ и ее геофизической модели выделяются следующие пять частей: источник энергии и вещества у верхней границы тихоокеанского сейсмофокального на глубине около 160 км, область подъема магм в астеносфере, область накопления магм в коромантийном слое на глубинах 40-25 км, магматические очаги и каналы в земной коре, основания построек вулканов. Рассматриваются и объясняются свойства, связь этих частей, механизм деятельности вулканов и магматической питающей системы КГВ в ее современном состоянии. Имеются способы расчета магматических каналов, очагов, количества магмы в системе и других ее свойств.
http://repo.kscnet.ru/1487/ [связанный ресурс]
Firstov P.P., Maksimov A.P., Girina O.A. Bezymianny (Kamchatka)/ Lava extrusion, pyroclastic flow // SEAN Bulletin. 1986. № 7. P. 12
Firstov P.P., Shakirova A.A. Seismicity observed during the precursory process and the actual eruption of Kizimen Volcano, Kamchatka in 2009-2013 // Journal of Volcanology and Seismology. 2014. V. 8. № 4. P. 203-217. doi: 10.1134/S0742046314040022.    Аннотация
Kizimen Volcano began to erupt in December 2010. The eruption was preceded by a precursory period of seismicity that lasted for 20 months. This paper discusses the space-time features of the precursory seismicity. We provide a brief description of this explosive and effusive eruption between December 2010 and March 2013. The eruption started with some explosive activity followed by extrusion of a viscous lava flow. The extrusion of viscous andesitic magma and the motion of the lava flow down the slope were accompanied by unusual seismicity in the form of the quasiperiodic occurrence of microearthquakes, the so-called drumbeat phenomenon. It is shown that the occurrence of a drumbeat was first recorded during the extrusion process at the volcano's summit. Subsequently, the drumbeat mode of activity was caused by the front of the viscous lava flow as it was moving down the slope. The dynamic parameters of the microearthquakes varied in accordance with the dimensions of the lava flow front. The motion of the main tongue of the lava flow (March to September 2011) gave rise to drumbeat I with energy classes of microearthquakes K = 3-5.5, while the second tongue, which was smaller than the first, produced drumbeat II with microearthquakes of K < 3 during its motion down the slope. In January 2013 we saw a phenomenon similar to the drumbeat that was recorded at the start of the eruption. This was caused by an obelisk being extruded at the volcano's summit. В© 2014 Pleiades Publishing, Ltd.
Gilichinsky Michael, Melnikov Dmitry, Melekestsev Ivan, Zaretskaya Natasha, Inbar Moshe Morphometric measurements of cinder cones from digital elevation models of Tolbachik volcanic field, central Kamchatka // Canadian Journal of Remote Sensing. 2010. V. 36. V. 4. P. 287-300.
Girina O.A. 1977-2010 Activity of Bezymianny Volcano // Abstracts. International Workshop “JKASP-7”. Petropavlovsk-Kamchatsky. August 25-30. 2011. 2011. P. 54
Girina O.A. A thermal anomaly as a precursor for predictions of strong explosive volcanic eruptions // Abstracts. IAVCEI 2013 Scientific Assembly, July 20 - 24. Kagoshima, Japan: 2013. № 1357-1.
Girina O.A. Chronology of Bezymianny Volcano activity, 1956-2010 // Journal of Volcanology and Geothermal Research. 2013. V. 263. P. 22-41. doi: 10.1016/j.jvolgeores.2013.05.002.    Аннотация
Bezymianny Volcano is one of the most active volcanoes in the world. In 1955, for the first time in history, Bezymianny started to erupt and after six months produced a catastrophic eruption with a total volume of eruptive products of more than 3 km3. Following explosive eruption, a lava dome began to grow in the resulting caldera. Lava dome growth continued intermittently for the next 57 years and continues today. During this extended period of lava dome growth, 44 Vulcanian-type strong explosive eruptions occurred between 1965 and 2012. This paper presents a summary of activity at Bezymianny Volcano from 1956 to 2010 with a focus on descriptive details for each event.
Girina O.A. Convective Differentiation of Pyroclastic from Andesitic Volcanoes // IUGG. XXI General Assembly. Colorado. 1995. P. B 419
Girina O.A. Granulometric composition of pyroclastics from andesite volcanoes of Kamchatka // 5 Zonenshain conference on plate tectonics. Moscow. 1995. P. 11
Girina O.A. Mitigation of risks of planes collision with ash clouds in the Northern part of the Pacific region // Materials of ISTC International Workshop “Worldwide early warning system of volcanic activities and mitigation of the global/regional consequences of volcanic eruptions”, Moscow, Russia, July 8-9, 2010. Moscow: ISTC. 2011. P. 95-101.
Girina O.A. Om Kamtjatkas vulkaner og Gejserdalen // Geografisk orientering. 2012. № 2. P. 470-475.
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.





 

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