Results 61 to 70 of about 309,413 (302)

Monitoring SO2 emission at the Soufriere Hills Volcano: implications for changes in erruptive conditions [PDF]

, 1998
FLWINinfo:eu-repo/semantics ...
A. J. H. Maciejewski, Allen, B. Darroux, Barclay, C. A. Gardner, C. M. M. Oppenheimer, Daag, Devine, G. E. Norton, Gerlach, Gerlach, Hammouya, Hirabayashi, I. M. Watson, J. Barclay, J. Stix, Luhr, M. A. Davies, Millán, Millán, Neuberg, Oppenheimer, P. Delmelle, P. W. Francis, Robertson, S. R. Young, Seigneur, Sparks, Stoiber, T. J. Casadevall, Wallace, Young   +31 more
core   +1 more source

Deep Magma Transport Control on the Size and Evolution of Explosive Volcanic Eruptions

Frontiers in Earth Science, 2021
Explosive eruptions are the surface manifestation of dynamics that involve transfer of magma from the underground regions of magma accumulation. Evidence of the involvement of compositionally different magmas from different reservoirs is continuously ...
Simone Colucci, Paolo Papale
doaj   +1 more source

Explosive Eruptions With Little Warning: Experimental Petrology and Volcano Monitoring Observations From the 2014 Eruption of Kelud, Indonesia

Geochemistry Geophysics Geosystems, 2019
Explosive eruptions that occur with little or no precursory unrest (less than a month) pose the greatest hazards from volcanoes to nearby populations. Here we focus on the preeruptive conditions for these explosive events, their triggers and how these ...
M. Cassidy, S. Ebmeier, C. Helo, S. Watt, C. Caudron, A. Odell, K. Spaans, P. Kristianto, H. Triastuty, H. Gunawan, J. Castro   +10 more
semanticscholar   +1 more source

Observation of An Evolving Magnetic Flux Rope Prior To and During A Solar Eruption

, 2012
Explosive energy release is a common phenomenon occurring in magnetized plasma systems ranging from laboratories, Earth's magnetosphere, the solar corona and astrophysical environments.
B Kliem, CJ Schrijver, DE McKenzie, DM Rust, EN Parker, F Yuan, G Aulanier, J Zhang, JR Lemen, KP Dere, L Burlaga, LM Green, M Yamada, O Olmedo, P Kumar, R Liu, RL Moore, RP Lepping, S Zharkov, SE Gibson, SK Antiochos, T Hirayama, TP Intrator, VS Titov, W Daughton, X Cheng   +25 more
core   +1 more source

Modelling of bubble nucleation in trachy-phonolitic magmas: implications for the dynamics of ash-rich eruptions [PDF]

, 2012
Nucleation of water gas bubbles in trachyphonolitic magmatic melts has been investigated integrating theory and numerical modelling with decompression experiments and analysis of natural ash samples of explosive eruptions.
Colucci, Simone
core   +1 more source

Temporal variations of magma composition, eruption style and rate at Fuji Volcano, Japan

Earth, Planets and Space, 2021
Mt. Fuji is an active basaltic volcano near the Tokyo metropolitan area; future eruptions could thus have serious nationwide impacts. To better understand recent volcanism at Fuji Volcano, we here clarify temporal variations of eruption rate and magma ...
Takahiro Yamamoto, Shun Nakano, Yoshihiro Ishizuka   +2 more
doaj   +1 more source

Surface-to-space atmospheric waves from Hunga Tonga–Hunga Ha’apai eruption

Nature, 2022
The January 2022 Hunga Tonga–Hunga Ha’apai eruption was one of the most explosive volcanic events of the modern era1,2, producing a vertical plume that peaked more than 50 km above the Earth3.
C. Wright, N. Hindley, M. Alexander, M. Barlow, L. Hoffmann, C. Mitchell, F. Prata, Marie Bouillon, J. Carstens, C. Clerbaux, S. Osprey, Nick Powell, C. Randall, J. Yue   +13 more
semanticscholar   +1 more source

SO₂ emissions from basaltic eruptions, and the excess sulfur issue [PDF]

, 2004
Volcanic SO2 can affect the Earth's environment. Where no direct measurements of SO2 in the atmosphere are available, a petrologic method of assessing sulfur release from the magma must be used.
Blake, S., Kreuger, A.J., Self, S., Sharma, K.   +3 more
core   +1 more source

Volcanological challenges to understanding explosive large-scale eruptions

Earth, Planets and Space, 2020
An explosive eruption, associated with the formation of a large ignimbrite sheet and collapsed caldera, is the most severe volcanic disaster on Earth.
Nobuo Geshi
doaj   +1 more source

Explosive Behavior of Intermediate Magmas: The Example of Cotopaxi Volcano (Ecuador)

Geochemistry, Geophysics, Geosystems, 2021
The variability in intensity and style shown by explosive volcanism has been traditionally explained by a complex interplay among melt composition and pre‐eruptive volatile content, which modulate magma ascent and conduit dynamics. However, magmas having
M. Pistolesi, A. Aravena, L. Costantini, C. Vigiani, R. Cioni, C. Bonadonna   +5 more
doaj   +1 more source