Results 161 to 170 of about 455 (195)
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Scoria cone formation through a violent Strombolian eruption: Irao Volcano, SW Japan
Bulletin of Volcanology, 2013Scoria cones are common volcanic features and are thought to most commonly develop through the deposition of ballistics produced by gentle Strombolian eruptions and the outward sliding of talus. However, some historic scoria cones have been observed to form with phases of more energetic violent Strombolian eruptions (e.g., the 1943–1952 eruption of ...
Kiyosugi, Koji +5 more
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Physics of the Earth and Planetary Interiors, 2020
Abstract Mount Erebus, Antarctica, has a persistent lava lake with Strombolian eruptions. Volcanic eruptions can be automatically detected with multiple methods such as cross-correlation of seismic recordings and identifying anomalies in gas emissions.
Gabriele Morra, Brian C. Dye
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Abstract Mount Erebus, Antarctica, has a persistent lava lake with Strombolian eruptions. Volcanic eruptions can be automatically detected with multiple methods such as cross-correlation of seismic recordings and identifying anomalies in gas emissions.
Gabriele Morra, Brian C. Dye
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Infrasound from Tungurahua Volcano 2006–2008: Strombolian to Plinian eruptive activity
Journal of Volcanology and Geothermal Research, 2010Abstract Strombolian to Plinian activity from Tungurahua Volcano, Ecuador has been recorded by the autonomous infrasound arrays of the Acoustic Surveillance for Hazardous Eruptions (ASHE) project since early 2006. Our studies suggest that acoustic energy release during large eruptions does appear to broadly scale with eruption intensity.
David Fee, Andrea Steffke, Milton Garces
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Bulletin of Volcanology, 1991
White Island is an active andesitic-dacitic composite volcano surrounded by sea, yet isolated from sea water by chemically sealed zones that confine a long-lived acidic hydrothermal system, within a thick sequence of fine-grained volcaniclastic sediment and ash.
Ian A. Nairn, Bruce F. Houghton
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White Island is an active andesitic-dacitic composite volcano surrounded by sea, yet isolated from sea water by chemically sealed zones that confine a long-lived acidic hydrothermal system, within a thick sequence of fine-grained volcaniclastic sediment and ash.
Ian A. Nairn, Bruce F. Houghton
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Journal of Volcanology and Geothermal Research, 2008
In this paper, we document the evolution of the emergent Panarea dome in the Aeolian islands (Southern Italy), placing particular emphasis on the reconstruction of the explosive events that occurred during the final stage of its evolution. Two main pyroclastic successions exposing fall deposits with different compositions have been studied into detail:
C. CIMARELLI +3 more
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In this paper, we document the evolution of the emergent Panarea dome in the Aeolian islands (Southern Italy), placing particular emphasis on the reconstruction of the explosive events that occurred during the final stage of its evolution. Two main pyroclastic successions exposing fall deposits with different compositions have been studied into detail:
C. CIMARELLI +3 more
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Journal of Geophysical Research: Solid Earth, 2020
AbstractIn a Strombolian volcanic eruption, bursting of a pressurized gas pocket accelerates a mixture of gas and pyroclasts along a conduit and out of a vent. While mixture ejection at the vent is the subject of direct geophysical measurements, and a key to eruption understanding, the dynamics of how the mixture moves in the conduit are not observable
Danilo M. Palladino +10 more
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AbstractIn a Strombolian volcanic eruption, bursting of a pressurized gas pocket accelerates a mixture of gas and pyroclasts along a conduit and out of a vent. While mixture ejection at the vent is the subject of direct geophysical measurements, and a key to eruption understanding, the dynamics of how the mixture moves in the conduit are not observable
Danilo M. Palladino +10 more
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Acoustic source characterization of impulsive Strombolian eruptions from the Mount Erebus lava lake
Journal of Volcanology and Geothermal Research, 2008Abstract We invert for acoustic source volume outflux and momentum imparted to the atmosphere using an infrasonic network distributed about the erupting lava lake at Mount Erebus, Ross Island, Antarctica. By modeling these relatively simple eruptions as monopole point sources we estimate explosively ejected gas volumes that range from 1,000 m 3 to ...
Richard C. Aster +4 more
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Parameterizing the Dynamics of Strombolian Eruptions through High-Speed Video Analysis
, 2011 Strombolian explosive activity is generally characterized by a series of short, mild explosions caused by the bursting of large individual gas pockets at the magma free surface; however individual explosions at Stromboli Volcano (Italy) show how these events can be complex and heterogeneous.
Antonio Capponi +3 more
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Precambrian Research, 2018
Abstract The Hidden formation of the Paleoproterozoic Flin Flon arc assemblage comprises the stratigraphic hanging wall to the volcanogenic massive sulfide (VMS) deposits at Flin Flon, Manitoba, Canada. It represents a basaltic volcanic edifice erupted within a large subsidence structure developed in a rifted-arc environment.
N. Pittman, Y.M. DeWolfe
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Abstract The Hidden formation of the Paleoproterozoic Flin Flon arc assemblage comprises the stratigraphic hanging wall to the volcanogenic massive sulfide (VMS) deposits at Flin Flon, Manitoba, Canada. It represents a basaltic volcanic edifice erupted within a large subsidence structure developed in a rifted-arc environment.
N. Pittman, Y.M. DeWolfe
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The Journal of Geology, 1979
Pleistocene basalt flows and related vent fades in the Pinacate volcanic field, Sonora, Mexico, record a four-stage eruptive cycle that is largely or wholly repeated at each of many cinder cones. Basal lava flows (stage 1) commonly preceded initiation of Strombolian cone-building activity.
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Pleistocene basalt flows and related vent fades in the Pinacate volcanic field, Sonora, Mexico, record a four-stage eruptive cycle that is largely or wholly repeated at each of many cinder cones. Basal lava flows (stage 1) commonly preceded initiation of Strombolian cone-building activity.
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