Results 111 to 120 of about 139,835 (226)

An analytical model for gas overpressure in slug-driven explosions:insights into Strombolian volcanic eruptions [PDF]

open access: yes, 2012
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.
Del Bello, Elisabetta   +4 more
core   +1 more source

An Endogenic Origin for Titan's Rampart Craters: Assessment of Explosion Mechanisms

open access: yesJournal of Geophysical Research: Planets, Volume 129, Issue 10, October 2024.
Abstract Rampart craters are a class of lakes or depressions in Titan's north polar region that have morphological attributes suggestive of an explosive origin. Two previous studies have proposed that rampart craters form via nitrogen or methane vapor explosions analogous to terrestrial maar explosions.
G. E. Brouwer   +2 more
wiley   +1 more source

Subaqueous cryptodome eruption, hydrothermal activity and related seafloor morphologies on the andesitic North Su volcano [PDF]

open access: yes, 2016
© The Author(s), 2016. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Journal of Volcanology and Geothermal Research 323 (2016): 80-96, doi ...
Bach, Wolfgang   +3 more
core   +1 more source

Two‐phase magma flow with phase exchange: Part II. 1.5D numerical simulations of a volcanic conduit

open access: yesStudies in Applied Mathematics, Volume 153, Issue 3, October 2024.
Abstract In a review paper in this same volume, we present the state of the art on modeling of compressible viscous flows ranging from single‐phase to two‐phase systems. It focuses on mathematical properties related to weak stability because they are important for numerical resolution and on the homogenization process that leads from a microscopic ...
Alain Burgisser   +3 more
wiley   +1 more source

Large tectonic earthquakes induce sharp temporary decreases in seismic velocity in Volcán de Colima, Mexico [PDF]

open access: yes, 2014
International audienceWe used the ambient noise cross-correlation and stretching methods to calculate variations in seismic velocities in the region of Volcán de Colima, Mexico. More than 15 years of continuous records were processed, producing long time
Arámbula-Mendoza, R.   +2 more
core   +2 more sources

Coupled subdaily and multiweek cycles during the lava dome erupt of Soufriere Hills Volcano, Montserrat [PDF]

open access: yes, 2013
Observations of volcanoes extruding andesitic lava to produce lava domes often reveal cyclic behaviour. At Soufriere Hills Volcano, Montserrat, cycles with sub-daily and multi-week periods have been recognised on many occasions.
Costa, A.   +3 more
core   +2 more sources

Probabilistic analysis of rockfall frequencies during an andesite lava dome eruption:The Soufrière Hills Volcano, Montserrat [PDF]

open access: yes, 2005
A probabilistic analysis of rockfalls has been undertaken using seismometer-determined information on the timing and duration of rockfalls from the Soufrière Hills lava dome, Montserrat, between 1995 and 1997.
Calder, E.S.   +3 more
core   +1 more source

Blast waves from violent explosive activity at Yasur Volcano, Vanuatu [PDF]

open access: yes, 2013
Infrasonic and seismic waveforms were collected during violent strombolian activity at Yasur Volcano (Vanuatu). Averaging similar to 3000 seismic events showed stable waveforms, evidencing a low-frequency (0.1-0.3Hz) signal preceding similar to 5-6s the ...
DELLE DONNE, Dario   +5 more
core   +4 more sources

Tracking volcanic explosions using Shannon entropy at Volcán de Colima. [PDF]

open access: yesSci Rep, 2023
Rey-Devesa P   +9 more
europepmc   +1 more source

Experiments on the Gas Dynamics of the Mt. St. Helens 1980 Lateral Blast [PDF]

open access: yes, 2007
Field evidence suggests that the lateral blast in the 1980 Mt. St. Helens eruption behaved like an underexpanded jet flow. We conduct two experiments to investigate this hypothesis. In our first experiment, we use the compressible flow--shallow-water
Austin, Joanna M.   +4 more
core  

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