Results 11 to 20 of about 455 (195)
Modeling Strombolian eruptions of Karymsky volcano, Kamchatka, Russia [PDF]
Journal of Volcanology and Geothermal Research, 2003 A model is proposed to explain temporal patterns of activity in a class of periodically exploding Strombolian-type andesite volcanoes. These patterns include major events (explosions) which occur every 3–30 min and subsequent tremor with a typical period of 1 s.
A. Ozerov +2 more
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Strombolian eruptions and dynamics of magma degassing at Yasur Volcano (Vanuatu) [PDF]
Journal of Volcanology and Geothermal Research, 2020 Open vent basaltic volcanoes account for a substantial portion of the global atmospheric outgassing flux, largely through passive degassing and mild explosive activity. We present volcanic gas flux and composition data from Yasur Volcano, Vanuatu collected in July 2018. The average volcanic plume chemistry is characterised by a mean molar CO2/SO2 ratio
Julia Woitischek +8 more
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Transport of ballistic projectiles during the 2015 Aso Strombolian eruptions [PDF]
Earth, Planets and Space, 2019 Abstract Large pyroclasts—often called ballistic projectiles—cause many casualties and serious damage on people and infrastructures. One useful measure of avoiding such disasters is to numerically simulate the ballistic trajectories and forecast where large pyroclasts deposit.
Kae Tsunematsu, K. Ishii, Akihiko Yokoo
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Shallow magma‐mingling‐driven Strombolian eruptions at Mt. Yasur volcano, Vanuatu [PDF]
Geophysical Research Letters, 2012 Mt. Yasur volcano (Vanuatu) has been increasingly recognized for its high‐frequency Strombolian eruptions. Strombolian activity is often regarded as a product of the rapid ascent of gas slugs originating from a deep magma, which mingle with a batch of shallow magma upon eruption.
Simon Kremers +6 more
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The deep feeding system of Vesuvius involved in recent violent strombolian eruptions [PDF]
Geophysical Research Letters, 2005 Mt. Vesuvius has experienced a period of semipersistent volcanic activity over the last three centuries, producing mainly lava effusions and some mixed effusive‐explosive eruptions of higher magnitude. We present a systematic study on major and volatile elements of melt inclusions trapped in olivine crystals peculiar to lapilli fallout emplaced during ...
Paola Marianelli +3 more
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An analytical model for gas overpressure in slug‐driven explosions: Insights into Strombolian volcanic eruptions [PDF]
Journal of Geophysical Research: Solid Earth, 2011 Strombolian eruptions, common at basaltic volcanoes, are mildly explosive events that are driven by a large bubble of magmatic gas (a slug) rising up the conduit and bursting at the surface. Gas overpressure within the bursting slug governs explosion dynamics and vigor and is the main factor controlling associated acoustic and seismic signals.
Elisabetta Del Bello +4 more
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High‐speed imaging of Strombolian eruptions: Gas‐pyroclast dynamics in initial volcanic jets [PDF]
Geophysical Research Letters, 2015 AbstractHigh‐speed imaging of Strombolian explosions brings into view the motion of pyroclasts upon leaving the volcanic vent. The erupted gas‐pyroclast mixtures form jets with well‐defined leading vortex rings that rise at almost constant velocity proportional to the time‐averaged velocity of pyroclasts.
Jacopo Taddeucci +4 more
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Stronger or longer: Discriminating between Hawaiian and Strombolian eruption styles [PDF]
Geology, 2016 The weakest explosive volcanic eruptions globally, Strombolian explosions and Hawaiian fountaining, are also the most common. Yet, despite over a hundred years of observations, no classifications have offered a convincing, quantitative way of demarcating these two styles.
B. F. Houghton +11 more
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Anatomy of a Strombolian eruption: Inferences from particle data recorded with thermal video [PDF]
Journal of Geophysical Research: Solid Earth, 2015 AbstractOver the past decade, a proliferation of new technologies has pushed forward our ability to measure the dynamics of volcanic emissions as they exit, and ascend above, the vent. Measuring parameters of all particles as they exit the vent during an explosive eruption is the best way to gather parameters such as size, shape, velocity, and mass for
Maxime Bombrun +4 more
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Imaging of Erebus volcano using body wave seismic interferometry of Strombolian eruption coda [PDF]
Geophysical Research Letters, 2012 Seismic interferometry is a recently developed theory that allows for the recovery of a medium's impulse response between two points should randomly distributed sources of white noise, or equivalently, a multiply scattered equipartioned wavefield, be present throughout the medium. We exploit the extremely scattering nature of volcanic media and seismic
Julien Chaput +4 more
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