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Geophysical Monograph Series, Page 117-131., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Benjamin Black +4 more
wiley +2 more sources
Explosion depths for phreatomagmatic eruptions [PDF]
Geophysical Research Letters, 2014 Subsurface phreatomagmatic explosions can result from the interaction of ascending magma with groundwater. Experiments over a wide range of energies show that for a given energy there is a depth below which an explosion will be contained within the subsurface (not erupt), and there is a corresponding shallower depth that will optimize ejecta dispersal.
Greg A. Valentine +2 more
openaire +1 more source
A transient model for explosive and phreatomagmatic eruptions [PDF]
Journal of Volcanology and Geothermal Research, 2005 Abstract We develop a model for explosive eruptions in cylindrical conduits generated by plug disruption at the top of the conduit. The eruption is calculated for a standard set of parameters for rhyolite. The model takes into account temperature variations and non-Newtonian magma rheology.
A.B. Starostin, A.A. Barmin, O.E. Melnik
openaire +1 more source
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
doaj +1 more source
Frontiers in Earth Science, 2022 Tephra layers in marine sediments are widely used to correlate and date paleoclimate and paleoceanography records, and to determine spatiotemporal changes in magmatic evolution and eruption frequency.
Iona M. McIntosh +5 more
doaj +1 more source
Frontiers in Earth Science, 2021 A prerequisite in refining volcanic hazard at explosive volcanoes is a better quantification of the timescales of the syn-eruptive processes, such as magma degassing and crystallization prior to eruption. To this aim, new data on the matrices (microlites,
Caroline Martel +3 more
doaj +1 more source
Determining the Volcanic Eruption Style of Tephra Deposits From Infrared Spectroscopy
Earth and Space Science, 2021 Orbital imagery and spectroscopy at Mars have identified a variety of deposits potentially consistent with volcanic tephra formed during explosive volcanic eruptions, and some of these deposits may have formed due to water‐ or ice‐magma interactions ...
M. J. B. Henderson +4 more
doaj +1 more source
Frontiers in Earth Science, 2020 A multi-disciplinary study, integrating volcanological field observations, petrography, whole rock geochemistry and textural and compositional analyses on plagioclase crystals has been carried out on the products of Monte Luccia, Spiaggia Lunga, and ...
Eugenio Nicotra +3 more
doaj +1 more source
A basaltic phreatomagmatic eruptive centre at Acacia Bay, Taupo Volcanic Centre [PDF]
Journal of the Royal Society of New Zealand, 1985 Abstract Basaltic tuffs seen in shoreline exposures at Acacia Bay township on Lake Taupo are interpreted as the heavily eroded relicts of a phreatomagmatic tuff ring and its associated outlying deposits. The tuff ring consists largely of ejected pumiceous lake sediments, which incorporate 15–20 volume % of juvenile basalt whose residual heat has caused
C. J. N. Wilson, I. E. M. Smith
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Renewed Explosive Phreatomagmatic Activity at Poás Volcano, Costa Rica in April 2017
Frontiers in Earth Science, 2018 Phreatic and phreatomagmatic eruptions at volcanoes often present no short term precursory activity, making them a challenge to forecast. Poás volcano, Costa Rica, exhibits cyclic activity with phreatic and some phreatomagmatic eruptions separated by ...
Rebecca O. Salvage +9 more
doaj +1 more source