Excessive degassing of Izu-Oshima volcano: magma convection in a conduit

1994 ◽  
Vol 56 (3) ◽  
pp. 207-216 ◽  
Author(s):  
Kohei Kazahaya ◽  
Hiroshi Shinohara ◽  
Genji Saito
Keyword(s):  
Magma Convection

Implications of magma convection for the size and temperature of magma chambers at fast spreading ridges

1988 ◽  
Vol 93 (B10) ◽  
pp. 11974 ◽  
Author(s):  
Douglas S. Wilson ◽  
David A. Clague ◽  
Norman H. Sleep ◽  
Janet L. Morton
Keyword(s):  
Magma Chambers ◽  
Spreading Ridges ◽  
Fast Spreading ◽  
Magma Convection

scholarly journals Japanese volcanoes visualized with muography

2018 ◽  
Vol 377 (2137) ◽  
pp. 20180142 ◽  
Author(s):  
Hiroyuki K. M. Tanaka
Keyword(s):  
Cosmic Rays ◽  
Density Distribution ◽  
Observational Data ◽  
Observational Studies ◽  
Lava Dome ◽  
Imaging Technique ◽  
Cosmic Ray ◽  
High Energy ◽  
Dome Formation ◽  
Magma Convection

High-energy muons that are generated via the reaction between primary cosmic rays and the Earth's atmosphere can be used to map out the density distribution in shallow parts of a volcano's interior. This new subterranean imaging technique called muography has been applied to three different kinds of volcano dynamics in Japan: lava dome formation, vulcanian explosions and magma convection. Taking all of the observational data together, it appears that muography can serve as a new and alternative volcano observation technique, providing a fresh approach to understanding eruption mechanism. This review describes observational studies in which muography has been used to explore the volcano's interior. This article is part of the Theo Murphy meeting issue ‘Cosmic-ray muography’.

Gravity fluctuations induced by magma convection at Kīlauea Volcano, Hawai‘i

Geology ◽  
2012 ◽  
Vol 40 (9) ◽  
pp. 803-806 ◽  
Author(s):  
Daniele Carbone ◽  
Michael P. Poland
Keyword(s):  
Kilauea Volcano ◽  
Kīlauea Volcano ◽  
Magma Convection

Excessive degassing of Izu-Oshima volcano: magma convection in a conduit

1994 ◽  
Vol 56 (3) ◽  
pp. 207-216 ◽  
Author(s):  
Kohei Kazahaya ◽  
Hiroshi Shinohara ◽  
Genji Saito
Keyword(s):  
Magma Convection

scholarly journals Crystals reveal magma convection and melt transport in dyke-fed eruptions

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Helena Albert ◽  
Patricia Larrea ◽  
Fidel Costa ◽  
Elisabeth Widom ◽  
Claus Siebe
Keyword(s):  
Melt Transport ◽  
Magma Convection

Magma convection and mixing dynamics as a source of Ultra-Long-Period oscillations

2011 ◽  
Vol 74 (4) ◽  
pp. 873-880 ◽  
Author(s):  
Antonella Longo ◽  
Paolo Papale ◽  
Melissa Vassalli ◽  
Gilberto Saccorotti ◽  
Chiara P. Montagna ◽  
...  
Keyword(s):  
Long Period ◽  
Mixing Dynamics ◽  
Magma Convection

scholarly journals The dynamics of the Campi Flegrei caldera magma chamber.

2021 ◽  
Author(s):  
Chiara Montagna ◽  
Paolo Papale ◽  
Antonella Longo
Keyword(s):  
Mathematical Modelling ◽  
Magma Chamber ◽  
Magma Mixing ◽  
Campi Flegrei ◽  
Magmatic System ◽  
Remarkable Case ◽  
Volcanic System ◽  
First Order ◽  
Magma Convection

The Campi Flegrei volcanic system is certainly a remarkable case study for what concerns magma chamber dynamics. In fact, its magmatic and volcanic history appears to have been largely driven by chamber processes like fractional crystallization, magma mixing, and volatile degassing. These processes have been intensely investigated with a variety of approaches that are described in many chapters of this book, and more specifically, in Chapters 2 to 5. Here we employ physico-mathematical modelling and numerical simulations in order to study the dynamics of magma convection and mixing in a vertically extended, geometrically complex, compositionally heterogeneous magmatic system representing a schematic simplification of an overall picture emerging from previous studies at Campi Flegrei. Although clearly a simplification, a number of first order characteristics of possible real magmatic systems at Campi Flegrei are accounted for, including the more chemically evolved, partially degassed nature of magmas emplaced at shallow depths, and the likely occurrence of multiple reservoirs with different depth, size and shape which can be connected at certain stages during system evolution, allowing deeper, CO2-rich magmas to rise and rejuvenate the shallow magmas.

Magma convection, temperature distribution, and differentiation

1969 ◽  
Vol 267 (9) ◽  
pp. 1067-1082 ◽  
Author(s):  
R. W. Bartlett
Keyword(s):  
Temperature Distribution ◽  
Magma Convection

scholarly journals Megacrystals track magma convection between reservoir and surface

2015 ◽  
Vol 413 ◽  
pp. 1-12 ◽  
Author(s):  
Yves Moussallam ◽  
Clive Oppenheimer ◽  
Bruno Scaillet ◽  
Iris Buisman ◽  
Christine Kimball ◽  
...  
Keyword(s):  
Magma Convection
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