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Volcano:

 
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The system of computer modeling of ash cloud propagation from Kamchatka volcanoes (2016)
Sorokin A.A., Girina O.A., Korolev S.P., Romanova I.M., Efremov V.Yu., Malkovskii S., Verkhoturov A., Balashov I. The system of computer modeling of ash cloud propagation from Kamchatka volcanoes // 2016 6th International Workshop on Computer Science and Engineering (WCSE 2016). Tokyo, Japan: 2016. V. II. P. 730-733.
Thermal anomalies on Savich Cone, Kikhpinych Volcano, Kamchatka: IR surveys and land-based observations for 30 years (1982 through 2012) (2015)
Kardanova O. F., Dubrovskaya I. K., Murav’ev Ya. D. Thermal anomalies on Savich Cone, Kikhpinych Volcano, Kamchatka: IR surveys and land-based observations for 30 years (1982 through 2012) // Journal of Volcanology and Seismology. 2015. V. 9. № 6. P. 368-377. doi:10.1134/S0742046315060032.
Three-dimensional volcano-acoustic source localization at Karymsky Volcano, Kamchatka, Russia (2014)
Rowell Colin R., Fee David, Szuberla Curt A.L., Arnoult Ken, Matoza Robin S., Firstov Pavel P., Kim Keehoon, Makhmudov Evgeniy Three-dimensional volcano-acoustic source localization at Karymsky Volcano, Kamchatka, Russia // Journal of Volcanology and Geothermal Research. 2014. V. 283. P. 101 - 115. doi: 10.1016/j.jvolgeores.2014.06.015.    Annotation
Abstract We test two methods of 3-D acoustic source localization on volcanic explosions and small-scale jetting events at Karymsky Volcano, Kamchatka, Russia. Recent infrasound studies have provided evidence that volcanic jets produce low-frequency aerodynamic sound (jet noise) similar to that from man-made jet engines. For man-made jet noise, noise sources localize along the turbulent jet flow downstream of the nozzle. Discrimination of jet noise sources along the axis of a volcanic jet requires high resolution in the vertical dimension, which is very difficult to achieve with typical volcano-acoustic network geometries. At Karymsky Volcano, an eroded edifice (Dvor Caldera) adjacent to the active cone provided a platform for the deployment of five infrasound sensors in July 2012 with intra-network relief of ~ 600 m. The network was designed to target large-scale jetting, but unfortunately only small-scale jetting and explosions were recorded during the 12-day experiment. A novel 3-D inverse localization method, srcLoc, is tested and compared against a more common grid-search semblance technique. Simulations using synthetic signals show that srcLoc is capable of determining vertical solutions to within ± 150 m or better (for signal-to-noise ratios ≥ 1) for this network configuration. However, srcLoc locations for explosions and small-scale jetting at Karymsky Volcano show a persistent overestimation of source elevation and underestimation of sound speed. The semblance method provides more realistic source locations, likely because it uses a fixed, realistic sound speed of ~ 340 m/s. Explosion waveforms exhibit amplitude relationships and waveform distortion strikingly similar to those theorized by modeling studies of wave diffraction around the crater rim. We suggest that the delay of acoustic signals and apparent elevated source locations are due to raypaths altered by topography and/or crater diffraction effects, implying that topography in the vent region must be accounted for when attempting 3-D volcano acoustic source localization. Though the data presented here are insufficient to resolve small-scale jet noise sources, similar techniques may be successfully applied to large volcanic jets in the future.
To use of thermomagnetic parameters to identify tephra (1999)
Zubov A.G., Kirianov V.Yu., Hughes S.R., Kurbatov A. To use of thermomagnetic parameters to identify tephra // AGU Meeting-99. Abstracts., 1999 г. 1999.    Annotation
О возможности использования термомагнитных параметров для идентификации вулканических пеплов
Tomographic Images of Klyuchevskoy Volcano P-Wave Velocity (2007)
Lees J., Symons N., Chubarova O., Gorelchik V., Ozerov A. Tomographic Images of Klyuchevskoy Volcano P-Wave Velocity // Geophysical Monograph Series. // Volcanism and Subduction: The Kamchatka Region. 2007. V. 172. P. 293-302.    Annotation
Three-dimensional structural images of the P-wave velocity below the edifice of the great Klyuchevskoy group of volcanoes in central Kamchatka are derived via tomographic inversion. The structures show a distinct low velocity feature extending from around 20 km depth to 35 km depth, indicating evidence of magma ponding near the Moho discontinuity. The extensive low velocity feature represents, at least to some degree, the source of the large volume of magma currently erupting at the surface near the Klyuchevskoy group.
Tsunamis Generated by Subaquatic Volcanic Explosions: Unique Data from 1996 Eruption in Karymskoye Lake, Kamchatka, Russia (2000)
Belousov A., Belousova M., Voight B. Tsunamis Generated by Subaquatic Volcanic Explosions: Unique Data from 1996 Eruption in Karymskoye Lake, Kamchatka, Russia // Pure and Applied Geophysics. 2000. V. 157. № 6-8. P. 1135-1143. doi:10.1007/s000240050021.
Two types of alkaline rocks - two types of upper mantle (1969)
Gorshkov G.S. Two types of alkaline rocks - two types of upper mantle // Bulletin of Volcanology. 1969. V. 33. № 4. P. 1186-1198.
Tyatya Volcano, southwestern Kuril arc: Recent eruptive activity inferred from widespread tephra (2002)
Nakagawa Mitsuhiro, Ishizuka Yoshihiro, Kudo Takashi, Yoshimoto Mitsuhiro, Hirose Wataru, Ishizaki Yoshio, Gouchi Nobuo, Katsui Yoshio, Solovyow Alexander W., Steinberg Genrikh S., Abdurakhmanov Arslan I. Tyatya Volcano, southwestern Kuril arc: Recent eruptive activity inferred from widespread tephra // The Island Arc. 2002. V. 11. № 4. P. 236-254. doi:10.1046/j.1440-1738.2002.00368.x.    Annotation
Tyatya Volcano, situated in Kunashir Island at the southwestern end of Kuril Islands, is a large composite stratovolcano and one of the most active volcanoes in the Kuril arc. The volcanic edifice can be divided into the old and the young ones, which are composed of rocks of distinct magma types, low‐ and medium‐K series, respectively. The young volcano has a summit caldera with a central cone. Recent eruptions have occurred at the central cone and at the flank vents of the young volcano. We found several distal ash layers at the volcano and identified their ages and sources, that is, tephras of ad 1856, ad 1739, ad 1694 and ca 1 Ka derived from three volcanoes of Hokkaido, Japan, and caad 969 from Baitoushan Volcano of China/North Korea. These could provide good time markers to reveal the eruptive history of the central cone, which had continued intermittently with Strombolian eruptions and lava flow effusions since before 1 Ka. Relatively explosive eruptions have occurred three times at the cone during the past 1000 years. We revealed that, topographically, the youngest lava flows from the cone are covered not by the tephra of ad 1739 but by that of ad 1856. This evidence, together with a report of dense smoke rising from the summit in ad 1812, suggests that the latest major eruption with lava effusion from the central cone occurred in this year. In 1973, after a long period of dormancy, short‐lived phreatomagmatic eruptions began to occur from fissure vents at the northern flank of the young volcano. This was followed by large eruptions of Strombolian to sub‐Plinian types occurring from several craters at the southern flank. The 1973 activity is evaluated as Volcanic Explosivity Index = 4 (approximately 0.2 km3), the largest eruption during the 20th century in the southwestern Kuril arc. The rocks of the central cone are strongly porphyritic basalt and basaltic andesite, whereas the 1973 scoria is aphyric basalt, suggesting that magma feeding systems are definitely different between the summit and flank eruptions.
Types and Mechanisms of Basaltic Explosions: Environmental Observations and Experimental Data (2008)
Ozerov A. Types and Mechanisms of Basaltic Explosions: Environmental Observations and Experimental Data // IAVCEI 2008 - General Assembly, Reykjavik, Iceland. Abstracts. 2008. P. 7
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Uzon volcano caldera (Kamchatka): A unique natural laboratory of the present-day naphthide genesis (2011)
Kontorovich A.E., Bortnikova S.B., Karpov G.A., Kashirtsev V.A., Kostyreva E.A., Fomin A.N. Uzon volcano caldera (Kamchatka): A unique natural laboratory of the present-day naphthide genesis // Russian Geology and Geophysics. 2011. V. 52. № 8. P. 768 - 772. doi: 10.1016/j.rgg.2011.07.002.    Annotation
Oil shows from the thermal springs of the Uzon volcano caldera have been studied by gas chromatography–mass spectrometry methods. Based on the composition and distribution of biomarker molecules, their genetic identity with the organic matter of Pliocene–Quaternary deposits has been established. It has been shown that the Uzon caldera is a unique natural laboratory of the present-day oil formation from the organic matter of Pliocene–Quaternary sediments. It has been stated that attempts to consider the compounds forming these oil shows as a product of hydrothermal abiogenic synthesis are absolutely unfounded.





 

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