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 K
Kamchatkan Volcanic Eruption Response Team (KVERT) Project in 2004-2006 (2006)
Girina O.A., Senyukov S.L., Neal C.A. Kamchatkan Volcanic Eruption Response Team (KVERT) Project in 2004-2006 // Abstracts. 5rd Biennial Workshop on Subduction Processes emphasizing the Japan-Kurile-Kamchatka-Aleutian Arcs (JKASP-5). 2006. P. 161-162. doi: P 618.
Kamchatkan Volcanic Eruption Response Team (KVERT) in 2002-2004 (2004)
Girina O.A., Senyukov S.L., Neal C.A. Kamchatkan Volcanic Eruption Response Team (KVERT) in 2002-2004 // 4rd International Biennial Workshop on Subduction Processes emphasizing the Japan-Kurile-Kamchatka-Aleutian Arcs, Petropavlovsk-Kamchatsky, August 21-27, 2004. Petropavlovsk-Kamchatsky: IVS FED RAS. 2004. P. 32-33.
Kamchatkan Volcanic Eruption Response Team (KVERT), Russia (2016)
Girina O.A., Gordeev E.I. Kamchatkan Volcanic Eruption Response Team (KVERT), Russia // Modern Information Technologies in Earth Sciences. Proc. of the VI International Conference, Yuzhno-Sakhalinsk, August 7-11, 2016. Vladivostok: Dalnauka. 2016. P. 29
Kamchatkan Volcanic Eruption Response Team (Project KVERT) (2006)
Girina O.A., Ushakov S.V., Senyukov S.L. Kamchatkan Volcanic Eruption Response Team (Project KVERT) // Abstracts for Fourth International Conference Cities on Volcanoes. IAVCEI. Quito-Ecuador. January 23-27. 2006. 2006. P. 150
Kamchatkan Volcanic Eruption Respouns Team (KVERT) Project in 2006-2009 (2009)
Girina O.A., Neal C.A. Kamchatkan Volcanic Eruption Respouns Team (KVERT) Project in 2006-2009 // Mitigating natural hazards in active arc environments. Abstracts. 6rd Biennial Workshop on Japan- Kamchatka-Alaska Subduction Processes (JKASP-2009). Fairbanks. June 22-26. 2009. P. 265
Kamchatkan Volcanoes Explosive Eruptions in 2014 and Danger to Aviation (2015)
Girina O.A., Manevich A.G., Melnikov D.V., Demyanchuk Yu.V., Nuzhdaev A.A., Petrova E. Kamchatkan Volcanoes Explosive Eruptions in 2014 and Danger to Aviation // Geophysical Research Abstracts. EGU2015-3174. Vienna, Austria: EGU General Assembly 2015. 2015. V. 17.
Kharchinskii and Zarechnyi volcanoes, unique centers of Late Pleistocene magnesian basalts in Kamchatka: Composition of erupted rocks (1999)
Volynets O.N., Melekestsev I.V., Ponomareva V.V., Yogodzinski J.M. Kharchinskii and Zarechnyi volcanoes, unique centers of Late Pleistocene magnesian basalts in Kamchatka: Composition of erupted rocks // Volcanology and Seismology. 1999. V. 21. № 1. P. 45-66.    Аннотация
Most of the Kharchinskii and Zarechnyi products, as well as those of the Kharchinskii cinder cones, are magnesian rocks. Mineralogical data suggest that both the basaltic and the andesitic magma were rich in water (≥3-4 and >6-7 wt., respectively) and crystallized at high oxygen fugacity (2.0-2.5 orders of magnitude higher than the NNO buffer). These features, coupled with the geochemical characteristics of these basalts and andesites, indicate that they are similar to the rocks of Shiveluch, a volcano also located on the northern flank of the Northern volcanic group, but differ from the rocks of the other volcanoes of this group which are located further south. The Kharchinskii, Zarechnyi, and Shiveluch magnesian basalts differ from the rocks of the Klyuchevskoi volcano and Tolbachik lava field by their higher K, Ba, Sr and lower Ca, Sc, Yb contents at higher La/Yb, Ni/Sc, and La/Ta ratios, while their initial magmas were more hydrous and more oxidized.
http://repo.kscnet.ru/844/ [связанный ресурс]
Kharchinsky and Zarechnyi volcanoes - unique centers of late Pleistocene magnesian basalts in Kamchatka: Structural setting, morphology, geologic structure and age (1999)
Volynets O.N., Melekestsev I.V., Ponomareva V.V., Yogodzinski G.M. Kharchinsky and Zarechnyi volcanoes - unique centers of late Pleistocene magnesian basalts in Kamchatka: Structural setting, morphology, geologic structure and age // Volcanology and Seismology. 1999. V. 20. № 4-5. P. 383-399.    Аннотация
This paper presents the results of studying the spatial distribution and structural setting of magnesian basalts and andesites in the Northern group of Kamchatkan volcanoes and in the junction zone of the Kuril-Kamchatka and Aleutian island arcs. The morphology and geologic structure of unique Kamchatkan magnesian basalt stratovolcanoes are described: Kharchinsky, Zarechnyi, and the Kharchinsky regional zone of cinder cones. The reported evidence includes the ages and eruptive histories, and productivities of the volcanoes and the volumes and weights of their edifices. The magnesian basalts were erupted 40-50 thousand years ago, for the first time during the Holocene.
http://repo.kscnet.ru/842/ [связанный ресурс]
Kizimen volcano, Kamchatka — A future Mount St. Helens? (1995)
Melekestsev Ivan V., Ponomareva Vera V., Volynets Oleg N. Kizimen volcano, Kamchatka — A future Mount St. Helens? // Journal of Volcanology and Geothermal Research. 1995. V. 65. № 3-4. P. 205-226.    Аннотация
We studied the tectonic setting, morphology, geologic structure, history of eruptive activity and evolution of the composition of the erupted material of Kizimen volcano, Kamchatka, from the moment of its origination 11–12 thousand years ago to the present time. Four cycles, each 2–3.5 thousand years long, were distinguished that characterize the activity of the volcano. All of the largest eruptions were dated, and their parameters determined. We also estimated the volume and the mass of the erupted products, the volcanic intensity of eruption of material during periods of high activity, and the amount of material the volcano ejected at different stages of its formation. It has been shown that the evolution of the composition of the rocks erupted (from dacite to basaltic andesite) takes place as a result of mixing of dacitic and basaltic magma. It is suggested that future eruptions that may take place at Kizimen may be similar to those at Bandai (1888) and Mount St. Helens (1980) volcanoes.


Kliuchevskoi volcano diary (2012)
Portnyagin Maxim, Ponomareva Vera Kliuchevskoi volcano diary // International Journal of Earth Sciences. 2012. V. 101. № 1. P. 195 doi:10.1007/s00531-011-0710-y.    Аннотация
Numerous ash layers deposited at the slopes of Kliuchevskoi volcano provide a detailed and continuous record of its explosive activity during the last ca. 10,000 years.
Kronotzk ignimbrites in Kamchatka (1963)
Piip B.I. Kronotzk ignimbrites in Kamchatka // Bulletin of Volcanology. 1963. V. 25. № 1. P. 31-32. doi: 10.1007/BF02596535.
Kurile Islands (1958)
Gorshkov G.S. Kurile Islands // Catalog of Active Volcanoes of the World and Solfatara Fields. Rome: IAVCEI, 7. 1958. P. 1-99.
Kurile Islands (2009)
Белоусов А.Б., Белоусова М.Г., Miller T. Kurile Islands // Encyclopedia of Islands. Berkeley, Los Angeles, London: University of California Press. 2009. P. 520-524.
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Large debris avalanches and associated eruptions in the Holocene eruptive history of Shiveluch Volcano, Kamchatka, Russia (1998)
Ponomareva V.V., Pevzner M.M., Melekestsev I.V. Large debris avalanches and associated eruptions in the Holocene eruptive history of Shiveluch Volcano, Kamchatka, Russia // Bulletin of Volcanology. 1998. V. 59. № 7. P. 490-505. doi: 10.1007/s004450050206.    Аннотация
Shiveluch Volcano, located in the Central Kamchatka Depression, has experienced multiple flank failures during its lifetime, most recently in 1964. The overlapping deposits of at least 13 large Holocene debris avalanches cover an area of approximately 200 km2 of the southern sector of the volcano. Deposits of two debris avalanches associated with flank extrusive domes are, in addition, located on its western slope. The maximum travel distance of individual Holocene avalanches exceeds 20 km, and their volumes reach ∼3 km3. The deposits of most avalanches typically have a hummocky surface, are poorly sorted and graded, and contain angular heterogeneous rock fragments of various sizes surrounded by coarse to fine matrix. The deposits differ in color, indicating different sources on the edifice. Tephrochronological and radiocarbon dating of the avalanches shows that the first large Holocene avalanches were emplaced approximately 4530–4350 BC. From ∼2490 BC at least 13 avalanches occurred after intervals of 30–900 years. Six large avalanches were emplaced between 120 and 970 AD, with recurrence intervals of 30–340 years. All the debris avalanches were followed by eruptions that produced various types of pyroclastic deposits. Features of some surge deposits suggest that they might have originated as a result of directed blasts triggered by rockslides. Most avalanche deposits are composed of fresh andesitic rocks of extrusive domes, so the avalanches might have resulted from the high magma supply rate and the repetitive formation of the domes. No trace of the 1854 summit failure mentioned in historical records has been found beyond 8 km from the crater; perhaps witnesses exaggerated or misinterpreted the events.
Large holocene eruptions of Avacha Volcano, Kamchatka (7250-3700 14C years B.P.) (1998)
Braitseva O.A., Bazanova L.I., Melekestsev I.V., Sulerzhitskiy L.D. Large holocene eruptions of Avacha Volcano, Kamchatka (7250-3700 14C years B.P.) // Volcanology and Seismology. 1998. V. 20. № 1. P. 1-27.    Аннотация
The chronology, dynamics, and parameters of seven large eruptions of Avacha Volcano were reconstructed for its IAv andesitic period 7250-370014C years B.P., which began after a >2000-year period of relative quiescence. Their juvenile (andesitic pyroclastics) and resurgent products are described, and the geological and geomorphological consequences are evaluated. The largest eruption occurred 715014C years B.P. (8-10 km3 of erupted material). The subsequent events occurred 5700 (≥0.34 km3), 5600 (≥0.4 km3), 5500 (>1.34 km3), 5000 (≥0.5 km3), 4500 (>1.1 km3), and 4000 (≥0.6 km3) 14C years B.P. The erupted rocks were dominated by tephra; pyroclastic flows occurred only during the events of 5500 and 5000 years ago. It is believed that most of the eruptions produced acid peaks of varying intensity in the Greenland ice sheet.

Реконструированы хронология, динамика и параметры семи крупнейших извержений андезитового этапа 1Ав 7250-3700 14С-лет назад (л.н.) вулкана Авачинский на Камчатке, начавшегося после >2000-летнего периода относительного покоя. Описаны их ювенильные (андезитовая пирокластика) и резургентные продукты, оценен геолого-геоморфологический эффект. Самое мощное извержение (объем продуктов 8-10 км3) было 7250, последующие - 5700 (3*0,34 км3), 5600 (3*0,4 км3), 5500 (1,34 км3), 5000 (0,5 км3), 4500 (>1,1 км3), 4000 ( 0,6 км3) 14С-л.н. Среди изверженных продуктов преобладала тефра, пирокластические потоки имели место лишь при извержениях 5500 и 5000 л.н. Предполагается, что большинство извержений могло давать кислотные пики разной интенсивности в Гренландском ледниковом щите.
http://repo.kscnet.ru/921/ [связанный ресурс]
Large scale landslides on active volcanoes in the 20th century - Examples from the Kurile-Kamchatka region (Russia) (1996)
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. V. 3. P. 953-957.
Large-scale failures on domes and stratocones situated on caldera ring faults: sand-box modeling of natural examples from Kamchatka, Russia (2005)
Belousov Alexander, Walter Thomas R., Troll Valentin R. Large-scale failures on domes and stratocones situated on caldera ring faults: sand-box modeling of natural examples from Kamchatka, Russia // Bulletin of Volcanology. 2005. V. 67. № 5. P. 457-468. doi:10.1007/s00445-004-0387-1.
Large-volume silicic volcanism in Kamchatka: Ar–Ar and U–Pb ages, isotopic, and geochemical characteristics of major pre-Holocene caldera-forming eruptions (2010)
Bindeman I.N., Leonov V.L., Izbekov P.E., Ponomareva V.V., Watts K.E., Shipley N.K., Perepelov A.B., Bazanova L.I., Jicha B.R., Singer B.S., Schmitt A.K., Portnyagin M.V., Chen C.H. Large-volume silicic volcanism in Kamchatka: Ar–Ar and U–Pb ages, isotopic, and geochemical characteristics of major pre-Holocene caldera-forming eruptions // Journal of Volcanology and Geothermal Research. 2010. V. 189. № 1-2. P. 57-80. doi:10.1016/j.jvolgeores.2009.10.009.    Аннотация
The Kamchatka Peninsula in far eastern Russia represents the most volcanically active arc in the world in terms of magma production and the number of explosive eruptions. We investigate large-scale silicic volcanism in the past several million years and present new geochronologic results from major ignimbrite sheets exposed in Kamchatka. These ignimbrites are found in the vicinity of morphologically-preserved rims of partially eroded source calderas with diameters from ∼ 2 to ∼ 30 km and with estimated volumes of eruptions ranging from 10 to several hundred cubic kilometers of magma. We also identify and date two of the largest ignimbrites: Golygin Ignimbrite in southern Kamchatka (0.45 Ma), and Karymshina River Ignimbrites (1.78 Ma) in south-central Kamchatka. We present whole-rock geochemical analyses that can be used to correlate ignimbrites laterally. These large-volume ignimbrites sample a significant proportion of remelted Kamchatkan crust as constrained by the oxygen isotopes. Oxygen isotope analyses of minerals and matrix span a 3‰ range with a significant proportion of moderately low-δ18O values. This suggests that the source for these ignimbrites involved a hydrothermally-altered shallow crust, while participation of the Cretaceous siliceous basement is also evidenced by moderately elevated δ18O and Sr isotopes and xenocryst contamination in two volcanoes. The majority of dates obtained for caldera-forming eruptions coincide with glacial stages in accordance with the sediment record in the NW Pacific, suggesting an increase in explosive volcanic activity since the onset of the last glaciation 2.6 Ma. Rapid changes in ice volume during glacial times and the resulting fluctuation of glacial loading/unloading could have caused volatile saturation in shallow magma chambers and, in combination with availability of low-δ18O glacial meltwaters, increased the proportion of explosive vs effusive eruptions. The presented results provide new constraints on Pliocene–Pleistocene volcanic activity in Kamchatka, and thus constrain an important component of the Pacific Ring of Fire.
Late Holocene diatom assemblages in a lake-sediment core from Central Kamchatka, Russia (2012)
Hoff U., Dirksen O., Dirksen V., Herzschuh U., Hubberten H.-W., Meyer H., Bogaard van den C., Diekmann B. Late Holocene diatom assemblages in a lake-sediment core from Central Kamchatka, Russia // Journal of Paleolimnology. 2012. V. 47. V. 4. P. 549-560. doi: 10.1007/s10933-012-9580-y.    Аннотация
Fossil diatom assemblages in a sediment core from a small lake in Central Kamchatka (Russia) were used to reconstruct palaeoenvironmental conditions of the late Holocene. The waterbody may be a kettle lake that formed on a moraine of the Two-Yurts Lake Valley, located on the eastern slope of the Central Kamchatka Mountain Chain. At present, it is a seepage lake with no surficial outflow. Fossil diatom assemblages show an almost constant ratio between planktonic and periphytic forms throughout the record. Downcore variations in the relative abundances of diatom species enabled division of the core into four diatom assemblage zones, mainly related to changes in abundances of Aulacoseira subarctica, Stephanodiscus minutulus, and Discostella pseudostelligera and several benthic species. Associated variations in the composition and content of organic matter are consistent with the diatom stratigraphy. The oldest recovered sediments date to about 3220 BC. They lie below a sedimentation hiatus and likely include reworked deposits from nearby Two-Yurts Lake. The initial lake stage between 870 and 400 BC was characterized by acidic shallow-water conditions. Between 400 BC and AD 1400, lacustrine conditions were established, with highest contributions from planktonic diatoms. The interval between AD 1400 and 1900 might reflect summer cooling during the Little Ice Age, indicated by diatoms that prefer strong turbulence, nutrient recycling and cooler summer conditions. The timing of palaeolimnological changes generally fits the pattern of neoglacial cooling during the late Holocene on Kamchatka and in the neighbouring Sea of Okhotsk, mainly driven by the prevailing modes of regional atmospheric circulation.
Late Pleistocene - Holocene Volcanism on the Kamchatka Peninsula, Northwest Pacific Region (2007)
Ponomareva V.V., Churikova T., Melekestsev I.V., Braitseva O.A., Pevzner M., Sulerzhitskii L. Late Pleistocene - Holocene Volcanism on the Kamchatka Peninsula, Northwest Pacific Region // Volcanism and Subduction: The Kamchatka Region. 2007. V. 172. P. 165-198. № 10.1029/172GM15.    Аннотация
Late Pleistocene-Holocene volcanism in Kamchatka results from the subduction of the
Pacific Plate under the peninsula and forms three volcanic belts arranged in en echelon manner
from southeast to northwest. The cross-arc extent of recent volcanism exceeds 250 km and
is one of the widest worldwide. All the belts are dominated by mafic rocks. Eruptives with
SiO2>57% constitute ~25% of the most productive Central Kamchatka Depression belt and
~30% of the Eastern volcanic front, but <10% of the least productive Sredinny Range belt.
All the Kamchatka volcanic rocks exhibit typical arc-type signatures and are represented
by basalt-rhyolite series differing in alkalis. Typical Kamchatka arc basalts display a strong
increase in LILE, LREE and HFSE from the front to the back-arc. La/Yb and Nb/Zr increase
from the arc front to the back arc while B/Li and As, Sb, B, Cl and S concentrations decrease.
The initial mantle source below Kamchatka ranges from N-MORB-like in the volcanic front
and Central Kamchatka Depression to more enriched in the back arc. Rocks from the Central
Kamchatka Depression range in 87Sr/86Sr ratios from 0.70334 to 0.70366, but have almost
constant Nd isotopic ratios (143Nd/144Nd 0.51307–0.51312). This correlates with the highest
U/Th ratios in these rocks and suggest the highest fluid-flux in the source region.
Holocene large eruptions and eruptive histories of individual Holocene volcanoes have been
studied with the help of tephrochronology and 14C dating that permits analysis of time-space
patterns of volcanic activity, evolution of the erupted products, and volcanic hazards.





 

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