Avachinsky Volcano. Bibliography
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Мелекесцев И.В., Брайцева О.А., Двигало В.Н., Базанова Л.И. Исторические извержения Авачинского вулкана на Камчатке (попытка современной интерпретации и классификации для долгосрочного прогноза типа и параметров будущих извержений). Ч. II (1926-1991 гг.) // Вулканология и сейсмология. 1994. № 2. С. 3-23.
   Annotation
We have summed up and supplemented new data on the eruptions of 1926-1927, 1938 and 1945 plus added the description of the last eruption of the volcano in January 1991. Considering the dynamics of the eruptive activity of the Avachinsky volcano in 1737-1991 we have presented a classification for these eruptions. Also we made a forecast of the type and parameters of possible future eruption as well as estimated the volcanic hazard associated with it. Because of high degree of volcanic hazard in the SW and S sectors of the base of the volcano it is proposed to prohibit constructions of any kind in these areas.
Мелекесцев И.В., Брайцева О.А., Пономарева В.В., Базанова Л.И., Пинегина Т.К., Дирксен О.В. 0-650 гг. - этап сильнейшего природного катастрофизма нашей эры на Камчатке // Вулканология и сейсмология. 2003. Вып. 6. № 6. С. 3-23.
   Annotation
We have identified, and describe in this paper, a phase of multifactor natural catastrophism that has been the greatest during our era in Kamchatka, to be dated 0-650 A. D. Its chief components were. The last catastrophic eruptions to have occurred (a caldera-generating one at about 240 A. D., the pyroclastics volume being 18-19 km3 and a subcaldera one around 600 A. D. with the volume of lava and pyroclastics 9.5-10.5 km3) which were followed by irreversible relief changes over areas of hundreds of square kilometers and have affected rather injuriously many other environmental components. An exceptionally intensive activity of the other volcanoes (at least 75-80% of all active and potebtially active Kamchatkan volcanoes were erupting, tens of large and catastrophic eruptions occurred). Regional catastrophic and large ashfalls. A sharp, large-amplitude (between 1.5-2 and 12-15 m) tectonic uplift of various blocks in Kamchatka. Large earthquakes accompanied by large-volume rockfalls, landslides, large and frequent tsunamis. The catastrophic events of that time are argued to have been part of a worldwide phase of natural catastrophism that we hypothesize to have occurred at the beginning of our era.
Мелекесцев И.В., Кирьянов В.Ю. Когда будет извергаться вулкан Авача на Камчатке? // Вулканология и сейсмология. 1984. № 6. С. 107-111.
Мелекесцев И.В., Краевая Т.С. , Брайцева О.А. Рельеф и отложения молодых вулканических районов Камчатки. М.: Наука. 1970. 102 с.
Мелекесцев И.В., Литасова С.Н., Сулержицкий Л.Д. О возрасте и масштабе катастрофических извержений типа направленного взрыва вулкана Авачинский (Камчатка) в позднем плейстоцене // Вулканология и сейсмология. 1991. № 2. С. 3-11.
   Annotation
Through radiocarbon techniques we determir the age (30 000 yrs) of the latest in the Late Pleistocene directed blast at the Avachinsky volca and approximately calculated the age of the previous large catastrophic eruption of the same type (35 00( 40 000 yrs). Coarse debris deposits produced by the eruption originally covered the area of 400 km2 a their volume was 16-20 km3. As a result of these eruptions the relief cardinally changed to the south of t Avachinsky and the lower part of the Avacha river channel was transported to the distance of 6-10 km. 11 believed that in the nearest hundreds of years such blasts will not take place but this forecast does not apply the adjacently located Koryaksky volcano.
Мелекесцев И.В., Селиверстов Н.И., Сенюков С.Л. Информационное сообщение об активизации в октябре 2001 г. вулкана Авачинский на Камчатке и проведенных исследованиях // Вулканология и сейсмология. 2002. № 2. С. 79-80.
Мелекесцев И.В., Сулержицкий Л.Д., Базанова Л.И., Брайцева О.А. Катастрофические голоценовые лахары Авачинского и Корякского вулканов на Камчатке // Вулканология и сейсмология. 1995. № 4-5. С. 172-181.
   Annotation
For the first time, tracks from 5 catastrophic lahars associated with subsynchronously occurring rueptions of the Avachinsky (great explosions with a large volume ejections of juvenile pyroclastics) and Koryaksky (voluminous lateral lava effusions) volcanoes have been found, described and dated by the C-14 method. Their reconstruction has been conducted. The C-14 ages of lahars are from 3500 to 3200 yrs ago, the calendar ages are from 1900 to 1500 BP. These lahars were significantly greater in volume, degree of hazard, and intensity of impact on the natural environment than those triggered by historic (19th - 20th centuries) eruptions from the both volcanoes. In particular, they caused a considerable (1-3 km) SW migration of the Avacha river down-stream channel, the largest waterway in Southern Kamchatka.
Меняйлов А.А. Извержение вулкана Авачи в 1938 г. // Бюллетень вулканологических станций. 1939. № 6. С. 3-20.
Мороз Ю.Ф., Гонтовая Л.И. Глубинное строение Южной Камчатки по геофизическим данным / Геодинамика и вулканизм Курило-Камчатской островодужной системы. Петропавловск-Камчатский: ИВГиГ ДВО РАН. // Геодинамика и вулканизм Курило-Камчатской островодужной системы. Петропавловск-Камчатский: ИВГиГ ДВО РАН. 2001. С. 58-74.
   Annotation
Data of seismological, gravimetric and electromagnetic study are presented. Main peculiarities of deep-seated structure of the earth's crust and upper mantle to the depth of ~90 km have been revealed. Margins of the lithosphere blocks on ground and water area of the Avacha bay have been established. A complex geologic-geophysical model beneath Avachinsky volcano has been developed. It involves crustal magmatic chamber at depth 15 to 25 km, intrusion overlying it, peripheric chamber at depth ~0 to 2 km, and zone saturated with liquid fluids in Avachinsky graben. Major geodynamic processes, which have been operating in the earth's crust at present, are considered. An important role is given to the crustal permeable zone containing fluids. Recommendations are made for the deep well-drilling in the area of Avachinsky volcano with the aim of searching for geothermal deposits.
Мороз Ю.Ф., Гонтовая Л.И. Глубинное строение района Авачинско-Корякской группы вулканов на Камчатке // Вулканология и сейсмология. 2003. № 4. С. 3-10.
   Annotation
Results are presented from gravity, seismic and electromagnetic studies. Main features of the deep structure of the area have been identified. A multidisciplinary geologic-geophysical model has been developed for the crust beneath Avacha Volcano. The model involves a crustal magma chamber at a depth of about 15-25 km, an intrusion that overlies it, and a peripheral chamber under the volcanic cone at 0-2 km depth, as well as a fluid-saturated zone in the Avacha Graben. We discuss possible geodynamic processes that are going on in the crust at present. Importance is attached to the fluid-containing crustal permeable zone. Recommendations are provided for drilling a deep well in the Avacha Graben area to search for a geothermal field.