Results 21 to 30 of about 26,142 (273)
Journal of Applied Volcanology, 2019 Through decades of field studies and laboratory analyses, Volcán de Colima, Mexico has one of the best known proximal eruption stratigraphies of any volcano, yet the frequency and magnitudes of previous eruptions are still poorly resolved.
Julia M. Crummy +5 more
doaj +1 more source
Models of ice melting and edifice growth during subglacial basaltic eruptions. [PDF]
, 2007 Models of the early stages of basaltic eruptions beneath temperate glaciers are presented that consider the evolving sizes of volcanic edifices emplaced within subglacial cavities.
Tuffen, Hugh
core +1 more source
The Research Unit VolImpact: Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption [PDF]
, 2020 This paper provides an overview of the scientific background and the research objectives of the Research Unit “VolImpact” (Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption, FOR 2820).
Buehler, S. +15 more
core +2 more sources
Evidence of mid- to late-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
Andean Geology, 2013 The 2008 eruption of Chaitén Volcano was widely cited as the first activity at the volcano for over 9000 years. However, we have identified evidence from proximal pyroclastic deposits for three additional explosive eruptions of Chaitén within the past ...
Sebastian F.L. Watt +2 more
doaj +1 more source
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
The vertical distribution of volcanic SO2 plumes measured by IASI [PDF]
Atmospheric Chemistry and Physics, 2016 Sulfur dioxide (SO2) is an important atmospheric constituent that plays a crucial role in many atmospheric processes. Volcanic eruptions are a significant source of atmospheric SO2 and its effects and lifetime depend on the SO2 injection altitude ...
E. Carboni +9 more
doaj +1 more source
An analytical model for gas overpressure in slug-driven explosions:insights into Strombolian volcanic eruptions [PDF]
, 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
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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.
openaire +1 more source
Volcanica, 2020 Early Eocene sediments in northwest Denmark contain over 180 well-preserved volcanic ash layers, likely sourced from the North Atlantic Igneous Province (NAIP) between 56.0 and 54.6 Ma.
Ella Wulfsberg Stokke +2 more
doaj +1 more source
Volcanica, 2021 Piton de la Fournaise (PdF) is a basaltic volcano whose activity is characterized by effusive to mildly explosive eruptions. The geologic record preserves evidence of explosive eruptions associated with the seaward sliding of the steep east flank.
Andrea Di Muro +4 more
doaj +1 more source