Записей: 2408
Braitseva O.A., Melekestsev I.V., Ponomareva V.V., Sulerzhitskiy L.D., Litasova S.N. Ages of active volcanoes in the Kuril-Kamchatka region // Volcanology and Seismology. 1995. Vol. 16. № 4-5. P. 341-369.    Аннотация
The births (ages) of most of the active volcanoes, calderas, and large craters produced by caldera-resembling eruptions (subcaldera craters) were dated as a result of geological, geomorphological, tephrochronological, and isotopic studies. The dated active volcanoes were found to be fairly young formations, the age of the oldest being 40-50 thousand years. Most of the presently highly active volcanoes had been born at the very end of the late Pleistocene or during the Holocene. Carbon-14 ages were determined for the majority of the Holocene volcanoes. The periods of time when Holocene volcanoes had been synchronously active were 7500-7800 and 1300-1800 years ago. -from Journal summary

По результатам геолого-геоморфологических, тефрохронологических и изотопно-геохронологических исследований на базе более 600 14С-дат определено время возникновения (возраст) большинства действующих вулканов, кальдер и кратеров субкальдерных извержений Курило-Камчатского региона. Установлено, что действующие вулканы являются достаточно молодыми образованиями с максимальным возрастом 40-50 тыс. лет. Подавляющее большинство наиболее активных в настоящее время вулканов начало формироваться в самом конце позднего плейстоцена и в голоцене. Для большинства вулканов, возникших в голоцене, определен их 14С-возраст. Установлено, что все полигенные стратовулканы Камчатки в голоцене возникали только в пределах ее Восточной вулканической зоны. Определен 14С-возраст большинства позднеплейстоценовых кальдер, которые сформировались Преимущественно к интервале времени 30-40 тыс. лет назад. Датированы все голоценовые кальдеры и ряд кратеров субкальдерных извержений. Выявлены периоды синхронной активизации действующих вулканов в голоцене в интервале времени 7500-7800 и 1300-1800 лет назад.
Braitseva O.A., Sulerzhitskii L.D., Ponomareva V.V., Melekestsev I.V. Geochronology of the greatest Holocene explosive eruptions in Kamchatka and their imprint on the Greenland glacier shield // Transactions (Doklady) of the Russian Academy of Sciences. Earth science section. 1997. Vol. 352. № 1. P. 138-140.
Braitseva O.A., Sulerzhitsky L.D., Litasova S.N., Melekestsev I.V., Ponomareva V.V. Radiocarbon dating and tephrochronology in Kamchatka // Radiocarbon. 1993. Vol. 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.
Braitseva Olga A., Ponomareva Vera V., Sulerzhitsky Leopold D., Melekestsev Ivan V., Bailey John Holocene Key-Marker Tephra Layers in Kamchatka, Russia // Quaternary Research. 1997. Vol. 47. № 2. P. 125-139. doi:10.1006/qres.1996.1876.    Аннотация
Detailed tephrochronological studies in Kamchatka Peninsula, Russia, permitted documentation of 24 Holocene key-marker tephra layers related to the largest explosive eruptions from 11 volcanic centers. Each layer was traced for tens to hundreds of kilometers away from the source volcano; its stratigraphic position, area of dispersal, age, characteristic features of grain-size distribution, and chemical and mineral composition confirmed its identification. The most important marker tephra horizons covering a large part of the peninsula are (from north to south; ages given in 14C yr B.P.) SH2(≈1000 yr B.P.) and SH3(≈1400 yr B.P.) from Shiveluch volcano; KZ (≈7500 yr B.P.) from Kizimen volcano; KRM (≈7900 yr B.P.) from Karymsky caldera; KHG (≈7000 yr B.P.) from Khangar volcano; AV1(≈3500 yr B.P.), AV2(≈4000 yr B.P.), AV4(≈5500 yr B.P.), and AV5(≈5600 yr B.P.) from Avachinsky volcano; OP (≈1500 yr B.P.) from the Baraniy Amfiteatr crater at Opala volcano; KHD (≈2800 yr B.P.) from the “maar” at Khodutka volcano; KS1(≈1800 yr B.P.) and KS2(≈6000 yr B.P.) from the Ksudach calderas; KSht3(A.D. 1907) from Shtyubel cone in Ksudach volcanic massif; and KO (≈7700 yr B.P.) from the Kuril Lake-Iliinsky caldera. Tephra layers SH5(≈2600 yr B.P.) from Shiveluch volcano, AV3(≈4500 yr B.P.) from Avachinsky volcano, OPtr(≈4600 yr B.P.) from Opala volcano, KS3(≈6100 yr B.P.) and KS4(≈8800 yr B.P.) from Ksudach calderas, KSht1(≈1100 yr B.P.) from Shtyubel cone, and ZLT (≈4600 yr B.P.) from Iliinsky volcano cover smaller areas and have local stratigraphic value, as do the ash layers from the historically recorded eruptions of Shiveluch (SH1964) and Bezymianny (B1956) volcanoes. The dated tephra layers provide a record of the most voluminous explosive events in Kamchatka during the Holocene and form a tephrochronological timescale for dating and correlating various deposits.
Bursik M., Melekestsev I.V., Braitseva O.A. Most recent fall deposits of Ksudach Volcano, Kamchatka, Russia // Geophysical Research Letters. 1993. Vol. 20. № 17. P. 1815-1818. doi: 10.1029/93GL01269.    Аннотация
Three of four Plinian eruptions from Ksudach Volcano are among the four largest explosive eruptions in southern Kamchatka during the past 2000 years. The earliest of the eruptions was voluminous and was accompanied by an ignimbrite and the fifth and most recent caldera collapse event at Ksudach. The isopach pattern is consistent with a column height of 23 km. The three more recent and smaller eruptions were from the Shtyubel' Cone, within the fifth caldera. Using isopach and grain size isopleth patterns, column heights ranged from ≥ 10 to 22 km. Although the oldest eruption may have produced a large acidity peak in the Greenland ice, the three Shtyubel' events may not be related to major acid deposition. Thus it is possible that few if any of the uncorrelated acidity peaks of the past 2000 years in Greenland ice cores result from eruptions in southern Kamchatka.
Bursik M., Patra A., Pitman E. B ., Nichita C., Macias J. L., Saucedo R., Girina O.A. Advances in studies of dense volcanic granular flows // Reports on Progress in Physics. 2005. Vol. 68. P. 271-301.
Burtsev M.A., Girina O.A., Kramareva L.S., Loupian E.A., Sorokin A.A., Uvarov I.A. Organization of heterogeneous remote sensing data management for near real-time volcanic activity monitoring and analysis with the VolSatView // JKASP-2018. Petropavlovsk-Kamchatsky: IVS FEB RAS. 2018.
Carter A.J., Girina O.A., Ramsey M.S., Demyanchuk Yu.V. ASTER and field observations of the 24 December 2006 eruption of Bezymianny Volcano, Russia // Remote Sensing of Environment. 2008. Vol. 112. P. 2569-2577. https://doi.org/10.1016/j.rse.2007.12.001.    Аннотация
An explosive eruption occurred at Bezymianny Volcano (Kamchatka Peninsula, Russia) on 24 December 2006 at 09:17 (UTC). Seismicity
increased three weeks prior to the large eruption, which produced a 12–15 km above sea level (ASL) ash column. We present field observations from 27 December 2006 and 2 March 2007, combined with satellite data collected from 8 October 2006 to 11 April 2007 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), as part of the instrument's rapid-response program to volcanic eruptions. Pixel-integrated brightness temperatures were calculated from both ASTER 90 m/pixel thermal infrared (TIR) data as well as 30 m/pixel shortwave infrared (SWIR) data. Four days prior to the eruption, the maximum TIR temperature was 45 °C above the average background temperature (−33 °C) at the dome, which we interpret was a precursory signal, and had dropped to 8 °C above background by 18 March 2007. On 20 December 2006, there was also a clear thermal signal in the SWIR data of 128 °C using ASTER Band 7 (2.26 μm). The maximum SWIR temperature was 181 °C on the lava dome on 4 January 2007, decreasing below the detection limit of the SWIR data by 11 April 2007. On 4 January 2007 a hot linear feature was observed at the dome in the SWIR data, which produced a maximum temperature of 700 °C for the hot fraction of the pixel using the dual band technique. This suggests that magmatic temperatures were present at the dome at this time, consistent with the emplacement of a new lava lobe following the eruption. The eruption also produced a large, 6.5 km long by up to 425 m wide pyroclastic flow (PF) deposit that was channelled into a valley to the south–southeast. The PF deposit cooled over the following three months but remained elevated above the average background temperature. A second field investigation in March 2007 revealed a still-warm PF deposit that contained fumaroles. It was also observed that the upper dome morphology had changed in the past year, with a new lava lobe having in-filled the crater that formed following the 9 May 2006 eruption. These data provide further information on effusive and explosive activity at Bezymianny using quantitative remote sensing data and reinforced by field observations to assist in pre-eruption detection as well as post-eruption monitoring.
Carter A.J., Ramsey M.S., Girina O.A., Belousov A.B., Durant A., Skilling I., Wolfe A. Spaceborne and field-based observations of Bezymianny Volcano, Kamchatka from 2000-2008 // Abstracts. AGU Fall Meeting, 14-19 December. San-Francisco, USA: AGU. 2008. doi: V43A-2140.
Carter Adam J., Ramsey Michael S., Belousov Alexander B. Detection of a new summit crater on Bezymianny Volcano lava dome: satellite and field-based thermal data // Bulletin of Volcanology. 2007. Vol. 69. № 7. P. 811-815. doi:10.1007/s00445-007-0113-x.

Рекомендуемые браузеры для просмотра данного сайта: Google Chrome, Mozilla Firefox, Opera, Yandex. Использование другого браузера может повлечь некорректное отображение содержимого веб-страниц.
Условия использования материалов и сервисов Геопортала

Copyright © Институт вулканологии и сейсмологии ДВО РАН, 2010-2021. Пользовательское соглашение.
Любое использование либо копирование материалов или подборки материалов Геопортала может осуществляться лишь с разрешения правообладателя и только при наличии ссылки на geoportal.kscnet.ru
©Development&Design: roman@kscnet.ru