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IVS FEB RAS Geoportal for integration and increasing availability of volcanological data (2013)
Romanova Iraida M. IVS FEB RAS Geoportal for integration and increasing availability of volcanological data // IAVCEI 2013 Scientific Assembly. July 20 - 24, Kagoshima, Japan. 2013. P. 1279
Identification of a widespread Kamchatkan tephra: A middle Pleistocene tie-point between Arctic and Pacific paleoclimatic records (2013)
Ponomareva Vera, Portnyagin Maxim, Derkachev Alexander, Juschus Olaf, Garbe-Schönberg Dieter, Nürnberg Dirk Identification of a widespread Kamchatkan tephra: A middle Pleistocene tie-point between Arctic and Pacific paleoclimatic records // Geophysical Research Letters. 2013. V. 40. № 14. P. 3538-3543. doi:10.1002/grl.50645.    Аннотация
Very few age controls exist for Quaternary deposits over the vast territory of the East Russian Arctic, which hampers dating of major environmental changes in this area and prevents their correlation to climatic changes in the Arctic and Pacific marine domains. We report a newly identified ~177 ka old Rauchua tephra, which has been dispersed over an area of >1,500,000 km2 and directly links terrestrial paleoenvironmental archives from Arctic Siberia with marine cores in the northwest Pacific, thus permitting their synchronization and dating. The Rauchua tephra can help to identify deposits formed in terrestrial and marine environments during the oxygen isotope stage 6.5 warming event. Chemical composition of volcanic glass from the Rauchua tephra points to its island-arc origin, while its spatial distribution singles out the Kamchatka volcanic arc as a source. The Rauchua tephra represents a previously unknown, large (magnitude >6.5) explosive eruption from the Kamchatka volcanic arc.
Influence of pre-eruptive degassing and crystallization on the juvenile products of laterally directed volcanic explosions (2010)
Neill Owen K., Hammer Julia E., Izbekov Pavel E., Belousova Marina G., Belousov Alexander B., Clarke Amanda B., Voight Barry Influence of pre-eruptive degassing and crystallization on the juvenile products of laterally directed volcanic explosions // Journal of Volcanology and Geothermal Research. 2010. V. 198. № 1-2. P. 264-274. doi:10.1016/j.jvolgeores.2010.09.011.
Influence of substrate tectonic heritage on the evolution of composite volcanoes: Predicting sites of flank eruption, lateral collapse, and erosion (2008)
Tibaldi Alessandro, Corazzato Claudia, Kozhurin Andrey, Lagmay Alfredo F.M., Pasquarè Federico A., Ponomareva Vera V., Rust Derek, Tormey Daniel, Vezzoli Luigina Influence of substrate tectonic heritage on the evolution of composite volcanoes: Predicting sites of flank eruption, lateral collapse, and erosion // Global and Planetary Change. 2008. V. 61. № 3-4. P. 151-174. doi:10.1016/j.gloplacha.2007.08.014.    Аннотация
This paper aims to aid understanding of the complicated interplay between construction and destruction of volcanoes, with an emphasis on the role of substrate tectonic heritage in controlling magma conduit geometry, lateral collapse, landslides, and preferential erosion pathways. The influence of basement structure on the development of six composite volcanoes located in different geodynamic/geological environments is described: Stromboli (Italy), in an island arc extensional tectonic setting, Ollagüe (Bolivia–Chile) in a cordilleran extensional setting, Kizimen (Russia) in a transtensional setting, Pinatubo (Philippines) in a transcurrent setting, Planchon (Chile) in a compressional cordilleran setting, and Mt. Etna (Italy) in a complex tectonic boundary setting. Analogue and numerical modelling results are used to enhance understanding of processes exemplified by these volcanic centres. We provide a comprehensive overview of this topic by considering a great deal of relevant, recently published studies and combine these with the presentation of new results, in order to contribute to the discussion on substrate tectonics and its control on volcano evolution. The results show that magma conduits in volcanic rift zones can be geometrically controlled by the regional tectonic stress field. Rift zones produce a lateral magma push that controls the direction of lateral collapse and can also trigger collapse. Once lateral collapse occurs, the resulting debuttressing produces a reorganization of the shallow-level magma migration pathways towards the collapse depression. Subsequent landslides and erosion tend to localize along rift zones. If a zone of weakness underlies a volcano, long-term creep can occur, deforming a large sector of the cone. This deformation can trigger landslides that propagate along the destabilized flank axis. In the absence of a rift zone, normal and transcurrent faults propagating from the substrate through the volcano can induce flank instability in directions respectively perpendicular and oblique to fault strike. This destabilization can evolve to lateral collapse with triggering mechanisms such as seismic activity or magmatic intrusion.
Information technologies in geomagnetic investigations of Late Cenozoic Pacific submarine volcanoes (2010)
Rashidov V.A., Romanova I.M., Bondarenko V.I., Palueva A.A. Information technologies in geomagnetic investigations of Late Cenozoic Pacific submarine volcanoes // Russian Journal of Earth Sciences. 2010. V. 11. № 3. P. 1-8. doi:10.2205/2009ES000358.    Аннотация
The original actual materials collected during the geomagnetic research on the research vessel "Vulkanolog" in 1977-1991 (19 volcanological expeditions) resulted in important contribution into the world data on the structure of Late Cenozoic Pacific submarine volcanoes.

The research resulted in a single method analysis of the anomalous magnetic field of submarine volcanoes and volcanic zones within the Kurile, Izu-Bonin, Mariana, Solomon and Kermadec arcs, New Guinean and South China peripheral seas and within the Socorro hot-spot.

It is stressed that the Late Cenozoic submarine volcanoes within the arcs show their presence distinctly in the anomalous magnetic field by local anomalies located within the edifices. Their amplitude may reach 3000 nT, and the horizontal gradient of the field may exceed 100 nT/km. The data interpretation of the hydromagnetic survey allowed distinguishing the internal structure of single submarine volcanoes, volcanic massifs and volcanic zones in various Pacific regions. The authors revealed the bodies forming anomalies within the isolated volcanic edifices and submarine volcanic zones. The 2.5D and 3D modeling resulted in the estimation of the body ages and the period of the submarine volcanic activity.

Besides the research resulted in estimation of the edifice volumes, scale of submarine volcanic activity and drew the conclusion on the evolution of certain volcanic massifs.

In order to classify and visualize the materials on the geomagnetic research we continue to create "Late Cenozoic Pacific submarine volcanoes" information system. Currently the information system includes:

The Internet page "Comparative analysis of the materials on geomagnetic research of various manifestation types of the Late Cenozoic submarine volcanism in the Pacific";
"Late Cenozoic Pacific submarine volcanoes" database;
GIS "Geomagnetic investigations of various appearance types of Late Cenozoic Pacific submarine volcano activity".
The web site http://www.kscnet.ru/ivs/grant/grant_04/index.html contains numerous maps of the anomalous magnetic field, bathymetric and structural maps, fragments of the echo- sounding survey records and continuous acoustic profiling, photos of land volcanoes, references of the Pacific submarine volcanic activity and "Catalogue on the Late Cenozoic Pacific submarine volcanoes" (in Russian).
The database on the Late Cenozoic Pacific submarine volcanoes includes location of submarine volcanoes, magnetic behaviors and chemical composition of dredge rocks and volumes of the volcanic edifices. The database is hosted on the IVS FEB RAS server and is available on the following page: http://www.kscnet.ru/ivs/volcanoes/submarine/.

The GIS contains maps of the anomalous magnetic field and the volcanic edifices relief.

"Late Cenozoic Pacific submarine volcanoes" information system provides researchers with the convenient tools for working with cartographic and attributive data and helps to implement a comprehensive data processing.
Infrasound from the 2012–2013 Plosky Tolbachik, Kamchatka fissure eruption (2015)
Albert Sarah, Fee David, Firstov Pavel, Makhmudov Evgeniy, Izbekov Pavel Infrasound from the 2012–2013 Plosky Tolbachik, Kamchatka fissure eruption // Journal of Volcanology and Geothermal Research. 2015. V. 307. P. 68 - 78. doi: 10.1016/j.jvolgeores.2015.08.019.    Аннотация
Abstract We use both regional and local infrasound data to investigate the dynamics of the 2012–2013 eruption of Tolbachik Volcano, Kamchatka, Russia during select periods of time. Analysis of regional data recorded at the {IMS} array {IS44} in southern Kamchatka, ~ 384 km from the vent focuses on the eruption onset in November 2012, while analysis of local data focuses on activity in February and August 2013. Signals recorded from Tolbachik suggest a change in eruptive intensity possibly occurred from November 27–30, 2012. Local infrasound data recorded at distances of 100–950 m from the vent are characterized primarily by repeated, transient explosion signals indicative of gas slug bursts. Three methods are employed to pick slug burst events in February and August. The nature of slug bursts makes a monopole acoustic source model particularly fitting, permitting volume outflux and slug radius calculations for individual events. Volume outfluxes and slug radii distributions provide three possible explanations for the eruption style of Tolbachik Volcano from mid-February to late August. Cumulative outflux for slug bursts (i.e. mass of emissions from individual bursts) derived by infrasound for both February and August range from < 100 to ~ 3000 kg. These values are greater than infrasound-derived emissions calculated at Pacaya Volcano, but less than those calculated at Mt. Erebus Volcano. From this, we determine slug bursts at Tolbachik Volcano in February and August were larger on average than those at Pacaya Volcano in 2010, but smaller on average than those at Mt. Erebus in 2008. Our overall emissions estimates are in general agreement with estimates from satellite observations. This agreement supports the monopole source inversion as a potential method for estimating mass of emissions from slug burst events.
Integration of volcanological data in VOKKIA information system (2016)
Romanova I.M., Girina O.A., Maximov A.P., Vasiliev S.E. Integration of volcanological data in VOKKIA information system // Modern Information Technologies in Earth Sciences. Proc. of the VI International Conference, Yuzhno-Sakhalinsk, August 7-11, 2016. Vladivostok: Dalnauka. 2016. P. 65-66.
International Coordination in Managing Airborne Ash Hazards: Lessons from the Northern Pacific (2017)
Igarashi Yohko, Girina Olga, Osiensky Jeffrey, Moore Donald International Coordination in Managing Airborne Ash Hazards: Lessons from the Northern Pacific // Advances in Volcanology. Springer. 2017. P. 1-19.    Аннотация
Airborne volcanic ash is one of the most common, far-travelled, direct hazards associated with explosive volcanic eruptions worldwide. Management of volcanic ash cloud hazards often requires coordinated efforts of meteorological, volcanological, and aviation authorities from multiple countries. These international collaborations during eruptions pose particular challenges due to variable crisis response protocols, uneven agency responsibilities and technical capacities, language differences, and the expense of travel to establish and maintain relationships over the long term. This report introduces some of the recent efforts in enhancing international cooperation and collaboration in the Northern Pacific region.
Intra-oceanic Islands, East Pacific Ridge, Islands arcs: volcanism and upper mantle (1969)
Gorshkov G.S. Intra-oceanic Islands, East Pacific Ridge, Islands arcs: volcanism and upper mantle // Tectonophysics. // Tectonophysics. 1969. № 8. P. 213-221. doi: 10.1016/0040-1951(69)90098-5.
Introduction to the 2012–2013 Tolbachik eruption special issue (2015)
Edwards Benjamin R., Belousov Alexander, Belousova Marina, Volynets Anna Introduction to the 2012–2013 Tolbachik eruption special issue // Journal of Volcanology and Geothermal Research. 2015. V. 307. P. 1 - 2. doi: 10.1016/j.jvolgeores.2015.12.001.





 

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