Group by:  
Jump to:
Records: 2574
Федотов С.А. Жизненный путь В.И. Влодавца, старейшины отечественной вулканологии (15 (27) июля 1893 г. - 27 января 1993 г.) // Вулканология и сейсмология. 1993. № 3. С. 8-11.
Федотов С.А. Магматическая питающая система и механизм деятельности Ключевского вулкана // Вулканология и сейсмология. 1993. № 3. С. 23-46.
Mechanism of activity of the giant basaltic Klyuchevskoy volcano is stadied. Magma overpressure in its feeding system, surrounding rocks heating, amount and concentration of numerous radial dykes beneath the volcano at distances up to 20 km are calculated. It is shown that basaltic magmas of the Klyushevskoy volcano should be formed during their ascent through the crust and have to be accumulated in it. Results are compared with data on volcano eruptions, on the structure of the crust and earthquakes beneath the volcano. The state of the volcano and its unstable upper cone, and probable features of its next large eruptions are estimated.
Хубуная С.А., Богоявленский С.О., Новгородцева Т.Ю., Округина А.И. Минералогические особенности магнезиальных базальтов как отражение фракционирования в магматической камере Ключевского вулкана // Вулканология и сейсмология. 1993. № 3. С. 46-69.
As a result of detailed mineralogical and petrochemical research of calc-alcaline magnesial basalts produced by 21 explosive and effusive lateral break-outs of Kliuchevskoy volcano and based on the data of geochcmical thermometry new data obtained on the chemical composition of magnesial basalts, phenocrysts of olivines and clinopyroxenes and condition: of their crystallization in intermediate magmatic chambers. Balance calculations show that magnesial basalts are products of initial high maghesial magmas.
Maksimov A.P., Firstov P.P., Girina O.A., Malyshev A.I. The June 1986 eruption of Bezymyannyi // Volcanology and Seismology. 1992. Vol. 13. № 1. P. 1-20.
This paper presents the results of visual observations, particle-size analysis, seismological observations, and acoustic measurements carried out during a small-magnitude eruption of Bezymyannyi in June 1986. A mlodel is proposed for the mechanism of the eruption. A specific character of the eruption is explained by a deeper localization of a gas-rich aagia portion in the conduit,
Ozerov A.Yu., Khubunaya S.A. High-magnesian olivines and pyroxens as a criterion of petrogenetic relationship of calc-alkaline magmas from Klyuchevskoy volcano // Abstracts of 29th International Geological Congress. Kyoto: 1992. P. 639
Taran Yu.A., Pilipenko V.P., Rozhkov A.M., Vakin E.A. A geochemical model for fumaroles of the Mutnovsky volcano, Kamchatka, USSR // Journal of Volcanology and Geothermal Research. 1992. Vol. 49. № 3–4. P. 269 - 283. doi: 10.1016/0377-0273(92)90018-9.
On the basis of the chemical, isotopic and thermodynamic characteristics of fluids sampled between 1964 and 1989 a genetic model description is given for fumaroles of the Mutnovsky volcano. There are three individual groups of fumaroles in the Mutnovsky crater which show stable activity for a long period of time: “the Active Funnel” (temperatures exceed 600°C), the “Upper Field” (up to 320°C) and the “Bottom Field” (from 100 to 150°C). The three principal zones of emission have different gas composition, water isotopic composition, radioactivity and 3He/4He ratios. The abundance of magmatic components in the high-temperature fumaroles of the “Active Funnel” is much higher than those in gases from the other groups. Emission rate of SO2 from the “Active Funnel” is about 200 t/d, which requires complete degassing as a minimum of 1 km3 of magma every 20 years. Fluids of the “Upper Field” contain up to 80% of steam from the Mutnovsky geothermal system. Temperature variations of the “Bottom Field” fumaroles (from 97°C before 1982 to 151°C in 1989) result from changes in hydrological conditions in the crater. Evaporation of high-saline acid brine which is formed in the interior of the volcano is responsible for the composition of the “Bottom Field” gas-steam discharges.
Taran Yuri, Yurova L.M. The origin of SO4-Cl acidic brines from the Baransky geothermal field, Kuriles // XIX International Geology Congress. , Kyoto, Japan. 1992. P. 10
Андреев В.Н., Федотов С.А. Извержение Ключевского вулкана в 1990 году // Вулканизм, структуры и рудообразование: тез. докл. VII Всесоюз. вулканол. совещ. Иркутск, июнь 1992 г. Петропавловск-Камчатский: ИВ ДВО РАН, ИВГиГ ДВО РАН, НИГТЦ ДВО РАН. 1992. С. 4-5.
Балуев Э.Ю., Перепелов А.Б., Базанова Л.И., Пузанков М.Ю. Геологическое строение и эволюция вулканизма Хангарской вулкано-тектонической структуры / Вулканизм, структуры и рудообразование. Петропавловск-Камчатский: ИВГиГ ДВО РАН. 1992. С. 42-43.
Виноградов В.Н., Муравьев Я.Д. Ледник Козельский (Авачинская группа вулканов) Водно-ледниковый и тепловой баланс горноледниковых бассейнов. СПб: Гидрометеоиздат. 1992. 120 с.