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Записей: 2735
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Monitoring of 2010-2011 Kizimen Volcano Eruption and Prediction of Danger for Aviation (2011)
Girina O.A., Manevich A.G., Nuzhdaev A.A., Konovalova O.A., Ushakov S.V., Melnikov D.V. Monitoring of 2010-2011 Kizimen Volcano Eruption and Prediction of Danger for Aviation // EGU General Assembly. April 3-8. Vienna, 2011. Abstract. EGU2011-5432. 2011. Vol. 13.
Monitoring of the volcanic rock compositions during the 2012–2013 fissure eruption at Tolbachik volcano, Kamchatka (2015)
Volynets Anna O., Edwards Benjamin R., Melnikov Dmitry, Yakushev Anton, Griboedova Irina Monitoring of the volcanic rock compositions during the 2012–2013 fissure eruption at Tolbachik volcano, Kamchatka // Journal of Volcanology and Geothermal Research. 2015. Vol. 307. P. 120 - 132. doi: 10.1016/j.jvolgeores.2015.07.014.
   Аннотация
Abstract Here we present the results from monitoring of the composition of rocks produced during the 2012–2013 fissure eruption at Tolbachik volcano (FTE). Major and trace element concentrations in 75 samples are reported. Products of this eruption are represented by high alumina basaltic trachyandesites with higher alkalis and titanium contents than in all previously studied rocks of the Tolbachik monogenetic volcanic field. Rocks erupted during the first three days (27–30 November) from the northern (also called Menyailov) group of vents are the most silica- and alkali-rich (SiO2 concentrations up to 55.35 wt. and {K2O} up to 2.67 wt.). From December onwards, when the eruptive activity switched from the Menyailov vents to the southern (Naboko) group of vents, silica content dropped by 2 wt., concentrations of MgO, FeO, TiO2 and Mg# increased, and {K2O} and Na2O concentrations and K2O/MgO ratio decreased. For the rest of the eruption the compositions of rocks remained constant and homogeneous; no systematic compositional differences between lava, bombs and scoria samples are evident. Trace element distributions in the rocks of the Menyailov and Naboko vent lavas are relatively uniform; Menyailov lavas have slightly higher Th, Nb, Hf, Y, and {HREE} concentrations than the Naboko vent lavas at more or less constant element ratios. We explain the initial change in geochemistry by tapping of a slightly cooler and fractionated (~ 3 Mt and 8 Cpx) upper part of the magma storage zone before the main storage area began to feed the eruption. Thermodynamic constraints show that apparent liquidus temperatures varied from 1142 °C to 1151 °C, and thermodynamic modeling shows that variations in compositions are consistent with a high degree of low pressure (100–300 MPa), nominally anhydrous fractionation of a parent melt compositionally similar to the 1975 Northern Breakthrough high-Mg basalt. Geochemistry, petrological observations and modeling are in agreement with the newly erupted material being derived from remnant high-Al magma from the 1975–76 Southern Breakthrough eruption with only slight amounts of cooling (less than 1 °C per year) during the intervening 36 years.
Monitoring the Thermal Activity of Kamchatkan Volcanoes during 2015–2022 Using Remote Sensing (2023)
Girina O.A., Manevich A.G., Loupian E.A., Uvarov I.A., Korolev S.P., Sorokin A.A., Romanova I.M., Kramareva L.S., Burtsev M.A. Monitoring the Thermal Activity of Kamchatkan Volcanoes during 2015–2022 Using Remote Sensing // Remote Sensing. 2023. Vol. 15. Vol. 19. № 4775. https://doi.org/10.3390/rs15194775.
   Аннотация
The powerful explosive eruptions with large volumes of volcanic ash pose a great danger to the population and jet aircraft. Global experience in monitoring volcanoes and observing changes in the parameters of their thermal anomalies is successfully used to analyze the activity of volcanoes and predict their danger to the population. The Kamchatka Peninsula in Russia, with its 30 active volcanoes, is one of the most volcanically active regions in the world. The article considers the thermal activity in 2015–2022 of the Klyuchevskoy, Sheveluch, Bezymianny, and Karymsky volcanoes, whose rock composition varies from basaltic andesite to dacite. This study is based on the analysis of the Value of Temperature Difference between the thermal Anomaly and the Background (the VTDAB), obtained by manual processing of the AVHRR, MODIS, VIIRS, and MSU-MR satellite data in the VolSatView information system. Based on the VTDAB data, the following “background activity of the volcanoes” was determined: 20 °C for Sheveluch and Bezymianny, 12 °C for Klyuchevskoy, and 13–15 °C for Karymsky. This study showed that the highest temperature of the thermal anomaly corresponds to the juvenile magmatic material that arrived on the earth’s surface. The highest VTDAB is different for each volcano; it depends on the composition of the eruptive products produced by the volcano and on the character of an eruption. A joint analysis of the dynamics of the eruption of each volcano and changes in its thermal activity made it possible to determine the range of the VTDAB for different phases of a volcanic eruption.
Monogenetic cones of Klyuchevskaya group of volcanoes (Kamchatka, Russia) (2020)
Girina O.A., Ladygin V.М. Monogenetic cones of Klyuchevskaya group of volcanoes (Kamchatka, Russia) // Abstract volume of the 8th International Maar Conference. Petropavlovsk-Kamchatsky: IVS FEB RAS. 2020. P. 56-57.
Morphological Development of the Volcanic Islet Taketomi in the Kuriles (1934)
Tanakadate H. Morphological Development of the Volcanic Islet Taketomi in the Kuriles // Proceedings of the Imperial Academy. 1934. Vol. 10. № 8. P. 494-497. doi: 10.2183/pjab1912.10.494.
Morphometric and morphological development of Holocene cinder cones: A field and remote sensing study in the Tolbachik volcanic field, Kamchatka (2011)
Inbar Moshe, Gilichinsky Michael, Melekestsev Ivan, Melnikov Dmitry, Zaretskaya Natasha Morphometric and morphological development of Holocene cinder cones: A field and remote sensing study in the Tolbachik volcanic field, Kamchatka // Journal of Volcanology and Geothermal Research. 2011. Vol. 201. P. 301-310.
Morphometric measurements of cinder cones from digital elevation models of Tolbachik volcanic field, central Kamchatka (2010)
Gilichinsky Michael, Melnikov Dmitry, Melekestsev Ivan, Zaretskaya Natasha, Inbar Moshe Morphometric measurements of cinder cones from digital elevation models of Tolbachik volcanic field, central Kamchatka // Canadian Journal of Remote Sensing. 2010. Vol. 36. Vol. 4. P. 287-300.
Most recent fall deposits of Ksudach Volcano, Kamchatka, Russia (1993)
Bursik M., Melekestsev I.V., Braitseva O.A. Most recent fall deposits of Ksudach Volcano, Kamchatka, Russia // Geophysical Research Letters. 1993. Vol. 20. № 17. P. 1815-1818. doi: 10.1029/93GL01269.
   Аннотация
Three of four Plinian eruptions from Ksudach Volcano are among the four largest explosive eruptions in southern Kamchatka during the past 2000 years. The earliest of the eruptions was voluminous and was accompanied by an ignimbrite and the fifth and most recent caldera collapse event at Ksudach. The isopach pattern is consistent with a column height of 23 km. The three more recent and smaller eruptions were from the Shtyubel' Cone, within the fifth caldera. Using isopach and grain size isopleth patterns, column heights ranged from ≥ 10 to 22 km. Although the oldest eruption may have produced a large acidity peak in the Greenland ice, the three Shtyubel' events may not be related to major acid deposition. Thus it is possible that few if any of the uncorrelated acidity peaks of the past 2000 years in Greenland ice cores result from eruptions in southern Kamchatka.
Multiple edifice failures, debris avalanches and associated eruptions in the Holocene history of Shiveluch volcano, Kamchatka, Russia (1999)
Belousov Alexander, Belousova Marina, Voight Barry Multiple edifice failures, debris avalanches and associated eruptions in the Holocene history of Shiveluch volcano, Kamchatka, Russia // Bulletin of Volcanology. 1999. Vol. 61. № 5. P. 324-342. doi:10.1007/s004450050300.
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Nanoparticles of volcanic ash as a carrier for toxic elements on the global scale (2018)
Ermolin M.S., Fedotov P.S., Malik N.A., Karandashev V.K. Nanoparticles of volcanic ash as a carrier for toxic elements on the global scale // Chemosphere. 2018. Vol. 200. P. 16-22. doi: 10.1016/j.chemosphere.2018.02.089.