Group by:  
Jump to:
Records: 2772
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.
Белоусов А.Б., Белоусова М.Г., Жданова Е.Ю. Активность северной группы вулканов Камчатки в 1990-1992 гг. // Вулканология и сейсмология. 1996. Т. 2. С. 25-33.
The paper continues the series of papers that describe activity of the volcanoes of Northern group of Kamchatka since 1935. Activity of Kluchevskoy, Bezymianny and Shiveluch volcanoes in 1990—1992 is described.
Гирина О.А. Отложения пирокластических волн вулкана Безымянный // Вулканология и сейсмология. 1996. № 5. С. 42-53.
Ефимов А.Б., Ерошова Т.Я., Федотов С.А. О прорывах магмой питающего канала, образовании даек и других пластовых интрузий под Ключевским вулканом // Вулканология и сейсмология. 1996. № 1. С. 3-23.
Ларин Н.В., Биндеман И.Н., Симакин А.Г. Петрология вулкана Богдан Хмельницкий (о-в Итуруп, Курильские острова): Модель процессов фракционной дифференциации-смешения в магматической камере // Вулканология и сейсмология. 1996. № 5. С. 28-41.
Мелекесцев И.В. Вулкан Корякский (Камчатка): Извержение 1895 – 1896 гг. выделено ошибочно // Вулканология и сейсмология. 1996. № 2. С. 91-95.
The explosive-effusive eruption of 1895-1896 which has been supposed to occur on Koryakskiy Volcano, Kamchatka did not occur at all. It therefore is to be eliminated from the list of the volcano's eruptions, as well as from regional and worldwide catalogs of eruptions on active volcanoes and from other reference publications.
Мелекесцев И.В., Брайцева О.А., Базанова Л.И., Пономарева В.В., Сулержицкий Л.Д. Особый тип катастрофических эксплозивных извержений - голоценовые субкальдерные извержения Хангар, Ходуткинский "маар", Бараний Амфитеатр (Камчатка) // Вулканология и сейсмология. 1996. № 2. С. 3-24.
The devestating explosive eruptions at Khangar (about 7000 14C BP), Khodutkinskiy "maar" (about 2800 14C BP), and Baraniy Amphitheater (about 1500 14C BP) are classified into a special type, subcaldera eruptions. They were analogues of caldera-forming eruptions by their dynamics, erupted volume (1.5-15 km^3), aspect, facies family, and the composition {from dacites to rhyolites) of the pyroclastics, but were not followed by the development of collapse calderas whose cavity volumes would fit the volume of discharge pyroclastics when converted to solid rock (magma). The discrepancy between a "caldera-like" aspect of the pyroclastics and the type of erupting vent can probably be explained by the greal depths of reservoirs of silicic magma which were "galvanized" when hot basaltic magma was injected into them. A subcaldera eruption usually began with a violent discharge of tephra, much greater in volume than the other volcanic products, to be followed by the formation of pyroclastic flows associated with pyrociastic surges. This sequence of events repeated itself several times during the eruption. No major explosion breccias were formed. Intensive ashfall involved areas of n * 10^4 ... n * 10^5 km^2, so that dated tephra beds have been excellent regional marker horizons. Subcaldera eruptions are hypothesized to have influenced the Earth's climate and are reflected as synchronous acid peaks in the Greenland glacier shield.
Михайлова-Филиппова М.И., Федотов С.А. Течение магмы по цилиндрическому каналу, питающему вулкан: математическая модель // Вулканология и сейсмология. 1996. № 6. С. 20-30.
A mathematical model and a method of computation are developed for the flow of magma with temperature-dependent viscosity in the conduit of a volcano. An example involves the following parameters: conduit radius is 10 m, depth to the magma chamber is 30 km, the overpressure, magma temperature and viscosity in the chamber are 20 bars, 1300° C, and 104, Ю5, 106Pa s, respectively. The initial phase of conduit operation lasting less than 10 years is considered. Conditions are determined under which the conduit freezes (stopping the extrusion), a quasistationary behavior sets in (steady flow), and the flow heats the conduit wall intensively.
Озеров А.Ю., Арискин A.A., Бармина Г.С. К проблеме генетических взаимоотношений высокоглиноземистых и высокомагнезиальных базальтов Ключевского вулкана (Камчатка) // Доклады Академии наук. 1996. Т. 350. № 1. С. 104-107.