Results 21 to 30 of about 921,071 (254)

Pre-eruptive storage constraints of an active crystal mush using mineral-scale techniques [PDF]

open access: yes, 2023
Crystal mushes are common conceptual models used to interpret the structure of a magmatic reservoirs in many volcanic environments and are drivers of differentiation that can generate explosive silicic eruptions.
Winslow, Heather
core   +5 more sources

Flow and evolution of ice-sucrose crystal mushes [PDF]

open access: yesPhysical Review E, 2017
15 pages, 16 ...
Gilbert, Andrew J.   +2 more
openaire   +5 more sources

Transport of melt, pressure and heat through a magma mush

open access: yesFrontiers in Earth Science, 2023
Prior to intrusion, magma migrates through the crustal plumbing system that likely contains layers or columns of crystal mush. To better understand the behavior of the crustal magmatic system during magmatic unrest, it is important to examine the process
Yang Liao
doaj   +1 more source

Viscosity of Crystal‐Mushes and Implications for Compaction‐Driven Fluid Flow

open access: yesJournal of Geophysical Research: Solid Earth, 2022
Abstract Centrifuge experiments on olivine, chromite, and plagioclase aggregates saturated in basaltic liquid show evidence of viscous compaction by grain‐boundary diffusion‐controlled creep. The experiments confirm that the exponential dependence of shear viscosity on melt fraction, observed at low porosities in ...
James A. D. Connolly, Max W. Schmidt
openaire   +3 more sources

Quartz‐Hosted Melt Inclusions as Windows Into Magma Assembly and Storage Processes in the Youngest Toba Tuff

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Quartz‐hosted melt inclusions are windows into the assembly and storage of compositionally zoned magmas systems like the giant magma body responsible for the 2,800 km3 Youngest Toba Tuff (YTT), Indonesia.
C. R. Tierney, M. R. Reid
doaj   +1 more source

Mush microphysics and the reactivation of crystal‐rich magma reservoirs [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2014
AbstractReactivation and eruption of upper crustal crystal‐rich magma reservoirs (“crystal mushes”) following recharge has recently been invoked in numerous volcanic systems worldwide. Over the last few years, several models have been proposed for the reactivation of such mushes prior to or during eruptions.
Parmigiani, Andrea   +2 more
openaire   +2 more sources

Crystal Shape Control on the Repacking and Jamming of Crystal‐Rich Mushes

open access: yesGeophysical Research Letters, 2022
AbstractThe rheology of crustal mushes is a crucial parameter controlling melt segregation and magma flow. However, the relations between mush dynamics and crystal size and shape distribution remain poorly understood because of the complexity of melt‐crystal and crystal‐crystal interactions.
Susana Hoyos   +3 more
openaire   +2 more sources

The permeability of loose magma mush [PDF]

open access: yes, 2023
Models for the evolution of magma mush zones are of fundamental importance for understanding magma storage, differentiation in the crust, and melt extraction processes that prime eruptions.
Dobson, Katherine J.   +7 more
core   +2 more sources

Fossilized solidification fronts in the Bushveld Complex argue for liquid-dominated magmatic systems

open access: yesNature Communications, 2020
Magma storage zones are debated to either be crystal-dominated mush zones or large liquid-dominated magma chambers. Here, the authors discover fossilized solidification fronts of magnetitite in the Bushveld pluton, which indicate nucleation and crystal ...
Willem Kruger, Rais Latypov
doaj   +1 more source

Mush Amalgamation, Short Residence, and Sparse Detectability of Eruptible Magma Before Andean Super‐Eruptions

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Giant volcanic eruptions have the potential to overturn civilizations. Yet, the driving mechanism and timescale over which batholithic magma reservoirs transition from non‐eruptible crystal mush to mobile melt‐dominated stages and our capacity to detect ...
G. Weber, J. Blundy, D. Bevan
doaj   +1 more source

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