Results 51 to 60 of about 29,420 (201)
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
Ash aggregation in explosive volcanic eruptions [PDF]
Geophysical Research Letters, 2013 Eruption dynamics are sensitive to ash aggregation, and aggregates are commonly found in eruptive deposits. While ash dispersal and associated hazards are sensitive to aggregation, few experiments have been conducted on this phenomena using natural materials across the diverse range of conditions expected in volcanic flows. We have isolated two regimes,
J. Telling, J. Dufek, A. Shaikh
openaire +1 more source
CO2-crystal wettability in potassic magmas. Implications for eruptive dynamics in light of experimental evidence for heterogeneous nucleation. [PDF]
, 2017 The volatile content in magmas is fundamental for the triggering and style of volcanic eruptions. Carbon dioxide, the second most abundant volatile component in magmas after H2O, is the first to reach saturation upon ascent and depressurization.
Fanara, S. +4 more
core +1 more source
Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano
Nature Communications, 2022 Petrological studies along with volcano monitoring data relate the unusual 2019 explosive activity at Stromboli volcano (Italy) to deep magma recharges up to a few days prior the eruption and a direct link between deep and shallow magma reservoirs.
Chiara Maria Petrone +12 more
doaj +1 more source
Eruptions from Under-Ice Explosions [PDF]
, 1988 Abstract : Eruptions from under-ice explosions were recorded by a standard video camera and an ordinary motor-driven 35-mm camera. The records give the dimensions and velocities of the eruptions. Velocity, diameter, and height are related to charge depth and the results are compared with data for ordinary underwater explosions in ice-free water.
David L'Heureux, Malcolm Mellor
openaire +1 more source
Report on potential sampling biases in the LaMEVE database of global volcanism
Journal of Applied Volcanology, 2017 We investigate whether the disproportionate contribution of individual volcanoes in the Large Magnitude Explosive Volcanic Eruption database (LaMEVE) potentially compromises the treatment of LaMEVE as a globally representative database of volcanic ...
Natalia Irma Deligne +2 more
doaj +1 more source
Role of volatiles in highly explosive basaltic eruptions
Communications Earth & Environment, 2022 The increase in mass eruption rate due to the presence of volatiles in explosive basaltic eruptions is greatly dependent on the type of volatile, according to numerical modelling. CO2 has a very limited effect unless injected from an external source.
Giuseppe La Spina +4 more
doaj +1 more source
A model for large-scale volcanic plumes on Io: Implications for eruption rates and interactions between magmas and near-surface volatiles. [PDF]
, 2002 Volcanic plumes deposit magmatic pyroclasts and SO2 frost on the surface of Io. We model the plume activity detected by Galileo at the Pillan and Pele sites from 1996 to 1997 assuming that magmatic eruptions incorporate liquid SO2 from near-surface ...
Cataldo, Enzo +3 more
core +1 more source
Frontiers in Marine Science, 2020 Extrusion of lava onto the seafloor transports heat and mass from the lithosphere to the hydrosphere and the biosphere. During this process, large amounts of dissolved gases can be released into the ocean as hydrothermal plumes and serve as nutrients for
Tamara Baumberger +7 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