Библиография
Вулкан:
Группировать:  
Выбрать:
Записей: 2735
 1997
Федотов С.А. Об извержениях в кальдере Академии Наук и Карымского вулкана на Камчатке в 1996 г., их изучении и механизме // Вулканология и сейсмология. 1997. № 5. С. 3-37.
   Аннотация
Статья посвящена извержениям, одновременно начавшимся в Карымском вулканическом центре на Камчатке в 1996 г., и связанным с ними явлениям. 1 января 1996 г. здесь начался сильный рой землетрясений с М до 6,9. 2 января 1996 г. последовало монотонное вершинное извержение Карымского вулкана, которое шло с расходом андезитодацитовой лавы 0,8 т/с до марта 1997 г. и далее. 2-3 января 1996 г. в результате внедрения базальтов по трещине после 28 тыс. лет покоя в кальдере Академии Наук произошло фреатомагматическое извержение с расходом пирокластики 800 т/с. Расстояние между кратерами извержений 6 км. Наблюдались базисные волны подводных взрывов, высокие цунами и образование нового полуострова в кальдерном озере, растяжение земной поверхности величиной более 2,3 м, превращение пресного кальдерного озера объемом 0,47 км3 в кислое (рН 3,2). Приведены краткие сведения о состоянии вулканического центра к концу 1995 г., успешном прогнозе, самих извержениях. Оценены глубина центра давления основного магматического очага (18,3 ± 0,8 км), объем коровых питающих магматических очагов (400 км3), возможные размеры внедрившейся дайки в прочных слоях коры (мощность 0,7 м, длина 4700 м). Рассмотрены вероятный механизм и связь происходивших процессов и извержений.
Федотов С.А., Михайлова-Филиппова М.И. Непрерывное течение магмы с убывающим расходом по цилиндрическому каналу, питающему вулкан: условия длительного существования // Вулканология и сейсмология. 1997. № 1. С. 3-16.
 1996
Adushkin V.V., Zykov Yu.N., Ivanov B.A. Numerical modeling of a rockslide avalanche at Koryakskiy volcano, Kamchatka // Volcanology and Seismology. 1996. Vol. 17. № 6. P. 705-717.
   Аннотация
A numerical model is proposed for the mechanism of a rockslide avalanche on the slope of Koryakskiy volcano caused by the emplacement of sheeted intrusive bodies. The model of non-stationary geomechanical processes with abnormally low internal friction is used to calculate an avalanchelike movement during a potential collapse of the cone.
Belousov Alexander Deposits of the 30 March 1956 directed blast at Bezymianny volcano, Kamchatka, Russia // Bulletin of Volcanology. 1996. Vol. 57. № 8. P. 649-662. doi:10.1007/s004450050118.
Belousov Alexander, Belousova Marina Large scale landslides on active volcanoes in the 20th century - Examples from the Kurile-Kamchatka region (Russia) // Landslides = Glissements de terrain : proceedings of the Seventh International Symposium on Landslides, 17 - 21 June 1996, Trondheim. Rotterdam: Balkema. 1996. Vol. 3. P. 953-957.
Braitseva O.A., Melekestsev I.V., Ponomareva V.V., Kirianov V.Yu. The caldera-forming eruption of Ksudach volcano about cal. A.D. 240: the greatest explosive event of our era in Kamchatka, Russia // Journal of Volcanology and Geothermal Research. 1996. Vol. 70. № 1-2. P. 49-65. doi:10.1016/0377-0273(95)00047-X.
   Аннотация
The largest Plinian eruption of our era and the latest caldera-forming eruption in the Kuril-Kamchatka region occurred about cal. A.D. 240 from the Ksudach volcano. This catastrophic explosive eruption was similar in type and characteristics to the 1883 Krakatau event. The volume of material ejected was 18–19 km3 (8 km3 DRE), including 15 km3 of tephra fall and 3–4 km3 of pyroclastic flows. The estimated height of eruptive column is 22–30 km. A collapse caldera resulting from this eruption was 4 × 6.5 km in size with a cavity volume of 6.5–7 km3. Tephra fall was deposited to the north of the volcano and reached more than 1000 km. Pyroclastic flows accompanied by ash-cloud pyroclastic surges extended out to 20 km. The eruption was initially phreatomagmatic and then became rhythmic, with each pulse evolving from pumice falls to pyroclastic flows. Erupted products were dominantly rhyodacite throughout the eruption. During the post-caldera stage, when the Shtyubel cone started to form within the caldera, basaltic-andesite and andesite magma began to effuse. The trigger for the eruption may have been an intrusion of mafic magma into the rhyodacite reservoir. The eruption had substantial environmental impact and may have produced a large acidity peak in the Greenland ice sheet.
Melekestsev I.V., Braitseva O.A., Ponomareva V.V., Sulerzhitskiy L.D. Holocene catastrophic caldera-forming eruptions of Ksudach volcano, Kamchatka // Volcanology and Seismology. 1996. Vol. 17. № 4-5. P. 395-422.
   Аннотация
Four Plinian eruptions of Ksudach have been reconstructed and dated by the carbon-14 method. The eruptions produced three collapse calderas: the KS1 eruption formed Caldera V 1700-1800 years ago, the KS2 and KS3 events produced Caldera IV 6000-6100 years ago, and the KS4 eruption formed Caldera III 8700-8800 years ago. The most violent eruption was the KS1 event. The sizes of the calderas were 4 × 6.5 km (V), 5 × 6 km (IV), and presumably 2-3 km across (III). Juvenile material was erupted in a rhythmic manner. The composition of the products was dominated by andesite (KS2 and KS4), dacite and rhyodacite (KS3), and rhyodacite (KS1). It is assumed that all caldera-forming eruptions were triggered by the injection of a new portion of high-temperature basic magma and its mixing with the cooling acid magma of the preexisting source. -from Journal summary
Melekestsev I.V., Sulerzhitskiy L.D., Bazanova L.I., Braitseva O.A., Florenskaya N.I. Holocene catastrophic lahars at Avacha and Koryakskiy volcanoes in Kamchatka // Volcanology and Seismology. 1996. Vol. 17. № 4-5. P. 561-570.
   Аннотация
Remnants of five catastrophic lahars have been discovered, described, and dated by the carbon-14 method. They occurred during eruptions of Avacha (violent explosions with voluminous juvenile pyroclastics) and Koryakskiy (large fissure lava flows): 3500 to 3200 14C years ago or 1900-1500 years B.C. These lahars were much higher in vigor, hazard, and effect on the environment than the lahars generated by the historic eruptions of these volcanoes. -from Journal summary
Ozerov A.Yu., Ariskin A.A., Barmina G.S. The Problem of Genetic Relations between High-Aluminous and High-Magnesian Basalts of the Klyuchevskoi Volcano, Kamchatka // Transactions (Doklady) of the Russian Academy of Sciences. Earth Science Sections. 1996. Vol. 350. № 7. P. 1127-1130.
Баранов Б.В., Гедике К., Леликов Е.П. Газовый факел в Охотском море // Природа. 1996. № 9. С. 43-47.