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Formation and Dynamics of Magma Reservoirs [PDF]
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019 The emerging concept of a magma reservoir is one in which regions containing melt extend from the source of magma generation to the surface. The reservoir may contain regions of very low fraction intergranular melt, partially molten rock (mush) and melt lenses (or magma chambers) containing high melt fraction eruptible magma, as well as pockets of ...
Alison C. Rust +2 more
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Architecture and Dynamics of Magma Reservoirs [PDF]
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019 This introductory article provides a synopsis of our current understanding of the form and dynamics of magma reservoirs in the crust. This knowledge is based on a range of experimental, observational and theoretical approaches, some of which are multidisclipinary and pioneering.
Katharine Venable Cashman +2 more
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Silicic Magma Reservoirs in the Earth’s Crust [PDF]
American Mineralogist, 2016 ![][1] Magma reservoirs play a key role in controlling numerous processes in planetary evolution, including igneous differentiation and degassing, crustal construction, and volcanism. For decades, scientists have tried to understand what happens in these reservoirs, using an array of techniques such as field mapping/petrology/geochemistry ...
Christian Huber, Olivier Bachmann
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The Mechanics of Shallow Magma Reservoir Outgassing [PDF]
Geochemistry, Geophysics, Geosystems, 2017 AbstractMagma degassing fundamentally controls the Earth's volatile cycles. The large amount of gas expelled into the atmosphere during volcanic eruptions (i.e., volcanic outgassing) is the most obvious display of magmatic volatile release. However, owing to the large intrusive:extrusive ratio, and considering the paucity of volatiles left in intrusive
Christian Huber +2 more
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Vesiculation of Mafic Magma During Replenishment of Silicic Magma Reservoirs
Nature, 1980Mafic inclusions are lower in bulk density than the andesitic and dacitic lavas in which they occur, and apparently represent a foam inflated during rapid cooling of wet mafic magma in contact with cooler, more silicic reservoir magma. This process occurs as mafic magma enters the base of the reservoir, so that the mafic/silicic interface becomes ...
John C. Eichelberger
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Journal of Volcanology and Geothermal Research, 2014
Abstract Large caldera-forming eruptions have long been a focus of both petrological and volcanological studies; petrologists have used the eruptive products to probe conditions of magma storage (and thus processes that drive magma evolution), while volcanologists have used them to study the conditions under which large volumes of magma are ...
Katharine Venable Cashman +1 more
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Abstract Large caldera-forming eruptions have long been a focus of both petrological and volcanological studies; petrologists have used the eruptive products to probe conditions of magma storage (and thus processes that drive magma evolution), while volcanologists have used them to study the conditions under which large volumes of magma are ...
Katharine Venable Cashman +1 more
exaly +4 more sources
The Magma Reservoirs That Feed Supereruptions
Elements, 2008The vigor and size of volcanic eruptions depend on what happens in magma reservoirs in the Earth’s crust. When magmatic activity occurs within continental areas, large reservoirs of viscous, gas-rich magma can be generated and cataclysmically discharged into the atmosphere during explosive supereruptions.
O. Bachmann, G. Bergantz
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Dynamics of differentiation in magma reservoirs
Journal of Geophysical Research: Solid Earth, 1995In large magma chambers, gradients of temperature and composition develop due to cooling and to fractional crystallization. Unstable density differences lead to differential motions between melt and crystals, and a major goal is to explain how this might result in chemical differentiation of magma.
Claude Jaupart, Stephen Tait
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Deformation driven magma ascent in stratified magma reservoirs: an experimental study
2021<p>Mature volcanic systems (e.g., Yellowstone, USA; Campi Flegrei, Italy) are fed by stratified magma reservoirs &#8211; small bodies of eruptible, crystal-poor silicic magma are suspended within a larger volume of non-eruptible, crystal-rich mush.
Amy Ryan, Mark Zimmerman, Lars Hansen
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A 3D finite element magma reservoir simulator
2023IC-FEMRES (Imperial College Finite Element Magma REservoir Simulator), is a finite-element based numerical code for simulating the 3D dynamic behaviour of a two-phase, multi-component magma reservoir with chemical reaction.  The code is built upon the open-source IC-FERST package (http://multifluids.github.io/) which includes advanced ...
Haiyang Hu +2 more
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