Results 51 to 60 of about 309,413 (302)
Explosive Volcanic Eruptions--III. Plinian Eruption Columns [PDF]
Geophysical Journal International, 1976 The mechanisms controlling the transport of pyroclasts in a plinian‐type eruption column are discussed. An estimate is made of the density of the magmatic gas in the vent, and initial (‘muzzle’) velocities are deduced for 18 eruptions using the a real distribution of pyroclasts in the resulting air‐fall deposits.
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Multi-stage volcanic island flank collapses with coeval explosive caldera-forming eruptions
Scientific Reports, 2018 Volcanic flank collapses and explosive eruptions are among the largest and most destructive processes on Earth. Events at Mount St. Helens in May 1980 demonstrated how a relatively small (300 km3), but can also occur in complex multiple stages.
James E. Hunt +2 more
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Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis [PDF]
, 2015 The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently ...
Barone, Vicente +7 more
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Earth, Planets and Space, 2022 The activity of the 2018–2019 eruption of Kuchinoerabujima Volcano in Japan changed from continuous ejection of ash-laden plumes between October 21 and the middle of December, to intermittent explosive activity accompanied by several pyroclastic density ...
Yusuke Minami +3 more
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Cryospheric Impacts on Volcano-Magmatic Systems
Frontiers in Earth Science, 2022 In contrast to water and air, ice is the most dynamic enveloping medium and unique environment for volcanic eruptions. While all three environments influence volcanic activity and eruption products, the cryospheric eruption environment is unique because:
Benjamin R. Edwards +2 more
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Electric Discharge in Erupting Mud
Geophysical Research Letters, 2022 Self‐ignition during the explosive eruption of mud volcanoes can create flames that in some cases reach heights that exceed hundreds of meters. To study the controls on electrical discharge in natural mud, we performed laboratory experiments using a ...
C. Springsklee +4 more
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Explosive and Eruptive Stars [PDF]
Symposium - International Astronomical Union, 1974 A summary of the main results and problems concerning explosive and eruptive stars is given. The way in which the observations are related to the internal structure problems is briefly explained. Suggestions for further work are made: (1) dynamo theory, supersonic turbulence, stability of the envelope of T Tau stars; (2) rate of exchange of matter in ...
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European climate response to tropical volcanic eruptions over the last half millennium [PDF]
, 2007 We analyse the winter and summer climatic signal following 15 major tropical volcanic eruptions over the last half millennium based on multi-proxy reconstructions for Europe. During the first and second post-eruption years we find significant continental
Adams +46 more
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Activation of the Sarychev Peak volcano in 2020–2021 (Matua Isl., the Central Kuril Islands) [PDF]
Геосистемы переходных зон, 2021 This publication, based on remote sensing data, examines the features of the effusive eruption of the Sarychev Peak volcano (Matua Isl., the Central Kuril Islands), which took place from December 2020 till February 2021.
Artem V. Degterev, Marina V. Chibisova
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Analysis of the Alaska Volcano Observatory's Response Time to Volcanic Explosions-1989 to 2016
Frontiers in Earth Science, 2018 A major goal of volcano monitoring is the rapid identification of volcanic explosions and subsequent warning of associated hazards. Between 1988 and 2016 the Alaska Volcano Observatory (AVO) responded to at least 54 separate volcanic eruptions.
John A. Power, Cheryl E. Cameron
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