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Records: 2276
 2010
Belousov Alexander, Belousova Marina, Chen Chang-Hwa, Zellmer Georg F. Deposits, character and timing of recent eruptions and gravitational collapses in Tatun Volcanic Group, Northern Taiwan: Hazard-related issues // Journal of Volcanology and Geothermal Research. 2010. V. 191. № 3-4. P. 205-221. doi:10.1016/j.jvolgeores.2010.02.001.
Bindeman I.N., Leonov V.L., Izbekov P.E., Ponomareva V.V., Watts K.E., Shipley N.K., Perepelov A.B., Bazanova L.I., Jicha B.R., Singer B.S., Schmitt A.K., Portnyagin M.V., Chen C.H. Large-volume silicic volcanism in Kamchatka: Ar–Ar and U–Pb ages, isotopic, and geochemical characteristics of major pre-Holocene caldera-forming eruptions // Journal of Volcanology and Geothermal Research. 2010. V. 189. № 1-2. P. 57-80. doi:10.1016/j.jvolgeores.2009.10.009.    Annotation
The Kamchatka Peninsula in far eastern Russia represents the most volcanically active arc in the world in terms of magma production and the number of explosive eruptions. We investigate large-scale silicic volcanism in the past several million years and present new geochronologic results from major ignimbrite sheets exposed in Kamchatka. These ignimbrites are found in the vicinity of morphologically-preserved rims of partially eroded source calderas with diameters from ∼ 2 to ∼ 30 km and with estimated volumes of eruptions ranging from 10 to several hundred cubic kilometers of magma. We also identify and date two of the largest ignimbrites: Golygin Ignimbrite in southern Kamchatka (0.45 Ma), and Karymshina River Ignimbrites (1.78 Ma) in south-central Kamchatka. We present whole-rock geochemical analyses that can be used to correlate ignimbrites laterally. These large-volume ignimbrites sample a significant proportion of remelted Kamchatkan crust as constrained by the oxygen isotopes. Oxygen isotope analyses of minerals and matrix span a 3‰ range with a significant proportion of moderately low-δ18O values. This suggests that the source for these ignimbrites involved a hydrothermally-altered shallow crust, while participation of the Cretaceous siliceous basement is also evidenced by moderately elevated δ18O and Sr isotopes and xenocryst contamination in two volcanoes. The majority of dates obtained for caldera-forming eruptions coincide with glacial stages in accordance with the sediment record in the NW Pacific, suggesting an increase in explosive volcanic activity since the onset of the last glaciation 2.6 Ma. Rapid changes in ice volume during glacial times and the resulting fluctuation of glacial loading/unloading could have caused volatile saturation in shallow magma chambers and, in combination with availability of low-δ18O glacial meltwaters, increased the proportion of explosive vs effusive eruptions. The presented results provide new constraints on Pliocene–Pleistocene volcanic activity in Kamchatka, and thus constrain an important component of the Pacific Ring of Fire.
Dirksen O.V., Bazanova L.I. An eruption of the Veer cone as a volcanic event during the increase of volcanic activity in Kamchatka at the beginning of the Christian Era // Journal of Volcanology and Seismology. 2010. V. 4. № 6. P. 378-384. doi: 10.1134/S0742046310060023.    Annotation
Tephrochronologic studies conducted in the Levaya Avacha River valley helped determine the true age of the Veer cinder cone, which formed approximately in 470 AD (1600 14C BP). These data refute the existing idea that it was generated in 1856. The monogenetic Veer cone should be cancelled from the catalogs of historical eruptions and active volcanoes in Kamchatka. The eruption of this cone was a reflection of the all-Kamchatkan increase in the activity of endogenous processes that occurred in 0–650 AD.

Тефрохронологические исследования, проведенные в долине р. Левая Авача, позволили установить истинный возраст шлакового конуса Веер, который образовался примерно в 470 г. н.э. (1600 14 л.н.). Эти данные опровергают существовавшие до настоящего времени представления о дате его формирования в 1856 г. Моногенный конус Веер необходимо исключить из каталогов исторических извержений и действующих вулканов Камчатки. Извержение конуса явилось проявлением общекамчатской активизации эндогенных процессов, происходившей в 0-650 гг. н.э.
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.    Annotation
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.
Gavrilenko M.G, Ozerov A.Yu. Geochemical similarities between the pre-caldera and modern evolutionary series of eruptive products from Gorely volcano, Kamchatka // 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec.. 2010. P. V21B-2333.
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.
Gavrilenko M.G, Ozerov A.Yu. The chemical composition of the accessory minerals inclusions in the olivine and pyroxene phenocrysts, as an indicator of the calc-alkaline magmas evolution conditions at the Gorely volcano (Kamchatka) // 2010 GSA Denver Annual Meeting (31 October – 3 November 2010). Geological Society of America Abstracts with Programs. Denver: GSA. 2010. V. 42. № 5. P. 626
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. Volcano monitoring and alert system in Kamchatka and Northern Kuriles // International Workshop on Progress of Research for Disaster Mitigation of Earthquakes and Volcanic Eruptions in the North Pacific Region. ISTC. Sapporo, Japan. May 10-13, 2010. Sapporo, Japan: Hokkaido University. 2010. P. 65-69.
Neill Owen K., Hammer Julia E., Izbekov Pavel E., Belousova Marina G., Belousov Alexander B., Clarke Amanda B., Voight Barry Influence of pre-eruptive degassing and crystallization on the juvenile products of laterally directed volcanic explosions // Journal of Volcanology and Geothermal Research. 2010. V. 198. № 1-2. P. 264-274. doi:10.1016/j.jvolgeores.2010.09.011.



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