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 2017
Сорокин А.А., Гирина О.А., Лупян Е.А., Мальковский С.И., Балашов И.В., Ефремов В.Ю., Крамарева Л.С., Королев С.П., Романова И.М., Симоненко Е.В. Спутниковые наблюдения и результаты численного моделирования для комплексного анализа распространения пепловых облаков во время эксплозивных извержений вулканов Камчатки // Метеорология и гидрология. 2017. № 12. С. 25-34.    Annotation
Пепловые облака, возникающие в результате эксплозивных извержений вулканов, представляют реальную угрозу для жизнедеятельности человека (для полетов воздушных судов, работы аэродромов и т.д.), поэтому обнаружение, отслеживание и прогноз их перемещения актуальны и важны. Описаны возможности и примеры применения нового инструмента, созданного на базе информационной системы “Мониторинг активности вулканов Камчатки и Курил” (VolSatView). Он позволяет решать задачи комплексного мониторинга и прогноза распространения пепловых облаков с помощью данных дистанционного зондирования и результатов математического моделирования, а также оценить параметры эксплозивных событий.
Флеров Г.Б., Чурикова Т.Г., Ананьев В.В. Вулканический массив Плоских Сопок: геология, петрохимия, минералогия и петрогенезис пород (Ключевская группа вулканов, Камчатка) // Вулканология и сейсмология. 2017. № 4. С. 30-47. doi: 10.7868/S0203030617040022.    Annotation
Рассматриваются геологическая история и петрология крупного полигенного вулканического сооружения верхнеплейстоцен-голоценового времени. Этот долгоживущий вулканический центр знаменателен совместным проявлением магм базальтового и трахибазальтового составов, представленных базальт-андезитовой и трахибазальт-трахиандезитовой сериями. Делается вывод о генетической автономности сосуществующих родительских магм, генерированных в разных глубинных источниках области верхней мантии. Разнообразие составов вулканитов обязано многостадийной пространственно-временной кристаллизационной дифференциации магм и смешению последних в промежуточных очагах.
Чебров Д.В., Фирстов П.П., Сенюков С.Л., Близнецов В.Е., Воропаев П.В., Гарбузова В.Т., Дрознина С.Я., Кожевникова Т.Ю., Кугаенко Ю.А., Назарова З.А., Нуждина И.Н., Салтыков В.А., Серафимова Ю.К., Сероветников С.С., Соболевская О.В. Активность вулкана Безымянный (Камчатка) в 2016−2017 гг. // Вестник КРАУНЦ. Серия: Науки о Земле. 2017. Вып. 33. № 1. С. 5-11.    Annotation
О системе сбора и обработки сейсмологической информации КФ ФИЦ ЕГС РАН

About activity of Bezymianny Volcano, Kamchatka, in 2016−2017.
 2016
Bergal-Kuvikas Olga, Leonov V., Rogozin A., Bindeman Ilya, Klyupitsky E. New discovered Late Miocene Verkhneavachinsksya caldera on Eastern Kamchatka // 9th Biennial Workshop on Japan-Kamchatka-Alaska Subduction Processes (JKASP-2016). 2016, Fairbanks, Alaska University. 2016.
Gavrilenko M., Herzberg C., Vidito C., Carr M., Tenner T., Ozerov A. A Calcium-in-Olivine Geohygrometer and its Application to Subduction Zone Magmatism // Journal of Petrology. 2016. V. 57. № 9. P. 1811-1832. doi:10.1093/petrology/egw062.    Annotation
High-precision electron microprobe analyses were obtained on olivine grains from Klyuchevskoy, Shiveluch and Gorely volcanoes in the Kamchatka Arc; Irazu, Platanar and Barva volcanoes of the Central American Arc; and mid-ocean ridge basalt (MORB) from the Siqueiros Transform. Calcium contents of these subduction zone olivines are lower than those for olivines from modern MORB, Archean komatiite and Hawaii. A role for magmatic H2O is likely for subduction zone olivines, and we have explored the suggestion of earlier workers that it has affected the partitioning of CaO between olivine and silicate melt. We provide a provisional calibration of DCaO Ol/L as a function of magmatic MgO and H2O, based on nominally anhydrous experiments and minimally degassed H2O contents of olivine-hosted melt inclusions. Application of our geohygrometer typically yields 3–4 wt % magmatic H2O at the Kamchatka and Central American arcs for olivines having 1000 ppm Ca, which agrees with H2O maxima from melt inclusion studies; Cerro Negro and Shiveluch volcanoes are exceptions, with about 6% H2O. High-precision electron microprobe analyses with 10–20 lm spatial resolution on some olivine grains from Klyuchevskoy and Shiveluch show a decrease in Ca content from the core centers to the rim contacts, and a sharp increase in Ca in olivine rims. We suggest that the zoning of Ca in olivine from subduction zone lavas may provide the first petrological record of temporal changes that occur during hydration of the mantle wedge and dehydration during ascent, and we predict olivine H2O contents that can be tested by secondary ionization mass spectrometry analysis.
Gavrilenko Maxim, Ozerov Alexey, Kyle Philip R., Carr Michael J., Nikulin Alex, Vidito Christopher, Danyushevsky Leonid Abrupt transition from fractional crystallization to magma mixing at Gorely volcano (Kamchatka) after caldera collapse // Bulletin of Volcanology. 2016. V. 78. № 7. doi:10.1007/s00445-016-1038-z.    Annotation
A series of large caldera-forming eruptions (361–38 ka) transformed Gorely volcano, southern Kamchatka Peninsula, from a shield-type system dominated by fractional crystallization processes to a composite volcanic center, exhibiting geochemical evidence of magma mixing. Old Gorely, an early shield volcano (700–361 ka), was followed by Young Gorely eruptions. Calc-alkaline high magnesium basalt to rhyolite lavas have been erupted from Gorely volcano since the Pleistocene. Fractional crystallization dominated evolution of the Old Gorely magmas, whereas magma mixing is more prominent in the Young Gorely eruptive products. The role of rechargeevacuation processes in Gorely magma evolution is negligible (a closed magmatic system); however, crustal rock assimilation plays a significant role for the evolved magmas. Most Gorely magmas differentiate in a shallow magmatic system at pressures up to 300 MPa, ∼3 wt% H2O, and oxygen fugacity of ∼QFM + 1.5 log units. Magma temperatures of 1123–1218 °C were measured using aluminum distribution between olivine and spinel in Old and Young Gorely basalts. The crystallization sequence of major minerals for Old Gorely was as follows: olivine and spinel (Ol + Sp) for mafic compositions (more than 5 wt% of MgO); clinopyroxene and plagioclase crystallized at ∼5 wt% of MgO (Ol +Cpx + Plag) and magnetite at ∼3.5 wt% of MgO (Ol + Cpx + Plag +Mt). We show that the shallow magma chamber evolution of Old Gorely occurs under conditions of decompression and degassing. We find that the caldera-forming eruption(s) modified the magma plumbing geometry. This led to a change in the dominant magma evolution process from fractional crystallization to magma mixing. We further suggest that disruption of the magma chamber and accompanying change in differentiation process have the potential to transform a shield volcanic system to that of composite cone on a global scale.
Girina O.A., Gordeev E.I. Kamchatkan Volcanic Eruption Response Team (KVERT), Russia // Modern Information Technologies in Earth Sciences. Proc. of the VI International Conference, Yuzhno-Sakhalinsk, August 7-11, 2016. Vladivostok: Dalnauka. 2016. P. 29
Girina O.A., Melnikov D.V., Manevich A.G., Demyanchuk Yu.V., Nuzhdaev A.A., Petrova E. Kamchatka and North Kurile Volcano Explosive Eruptions in 2015 and Danger to Aviation // Geophysical Research Abstracts Vol. 18, EGU2016-2101, 2016 EGU General Assembly 2016. EGU General Assembly 2016. 2016. № 10.13140/RG.2.1.5179.4001.
Gordeev E.I., Girina O.A., Lupyan E.A., Sorokin A.A., Kramareva L.S., Efremov V.Yu., Kashnitskii A.V., Uvarov I.A., Burtsev M.A., Romanova I.M., Mel’nikov D.V., Manevich A.G., Korolev S.P., Verkhoturov A.L. The VolSatView information system for Monitoring the Volcanic Activity in Kamchatka and on the Kuril Islands // Journal of Volcanology and Seismology. 2016. V. 10. № 6. P. 382-394. doi: 10.1134/S074204631606004X.    Annotation
Kamchatka and the Kuril Islands are home to 36 active volcanoes with yearly explosive eruptions that eject ash to heights of 8 to 15 km above sea level, posing hazards to jet planes. In order to reduce the risk of planes colliding with ash clouds in the north Pacific, the KVERT team affiliated with the Institute of Volcanology and Seismology of the Far East Branch of the Russian Academy of Sciences (IV&S FEB RAS) has conducted daily satellite-based monitoring of Kamchatka volcanoes since 2002. Specialists at the IV&S FEB RAS, Space Research Institute of the Russian Academy of Sciences (SRI RAS), the Computing Center of the Far East Branch of the Russian Academy of Sciences (CC FEB RAS), and the Far East Planeta Center of Space Hydrometeorology Research (FEPC SHR) have developed, introduced into practice, and were continuing to refine the VolSatView information system for Monitoring of Volcanic Activity in Kamchatka and on the Kuril Islands during the 2011–2015 period. This system enables integrated processing of various satellite data, as well as of weather and land-based information for continuous monitoring and investigation of volcanic activity in the Kuril–Kamchatka region. No other information system worldwide offers the abilities that the Vol-SatView has for studies of volcanoes. This paper shows the main abilities of the application of VolSatView for routine monitoring and retrospective analysis of volcanic activity in Kamchatka and on the Kuril Islands.
Gordeev E.I., Girina O.A., Manevich A.G., Melnikov D.V., Nuzhdaev A.A. 2015-2016 Activity of Kamchatkan and Northern Kuriles Volcanoes (Russia) and Danger to Aviation // 9th Biennial Workshop on Japan-Kamchatka-Alaska Subduction Processes (JKASP 2016). Fairbanks, Alaska: UAF. 2016. P. 93-94.





 

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