Results 1 to 10 of about 10,089 (175)

Porosity evolution of mafic crystal mush during reactive flow [PDF]

open access: yesNature Communications, 2023
The emergence of the “mush paradigm” has raised several questions for conventional models of magma storage and extraction: how are melts extracted to form eruptible liquid-rich domains?
Matthew L. M. Gleeson   +2 more
doaj   +6 more sources

Insights for crystal mush storage utilizing mafic enclaves from the 2011–12 Cordón Caulle eruption [PDF]

open access: yesScientific Reports, 2022
Two distinct types of rare crystal-rich mafic enclaves have been identified in the rhyolite lava flow from the 2011–12 Cordón Caulle eruption (Southern Andean Volcanic Zone, SVZ).
Heather Winslow   +7 more
doaj   +6 more sources

Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush [PDF]

open access: yesNature Communications, 2019
This study seeks to tackle the question of why intermediate magmatic rock compositions are poorly represented on the Earth’s surface. The authors do so by tracking the evolution of the physical behaviour of immiscible Fe-rich liquids within a sample ...
Victoria C. Honour   +9 more
doaj   +9 more sources

Crystal scavenging from mush piles recorded by melt inclusions [PDF]

open access: yesNature Communications, 2019
The increasingly prevalent view of magmatic systems as mush-dominated challenges the common assumption that melt inclusions record the pre-eruptive storage and processing of the melts they were erupted with.
Penny E. Wieser   +4 more
doaj   +6 more sources

Localized rejuvenation of a crystal mush recorded in zircon temporal and compositional variation at the Lassen Volcanic Center, northern California. [PDF]

open access: yesPLoS ONE, 2014
Zircon ages and trace element compositions from recent silicic eruptions in the Lassen Volcanic Center (LVC) allow for an evaluation of the timing and conditions of rejuvenation (reheating and mobilization of crystals) within the LVC magmatic system. The
Erik W Klemetti, Michael A Clynne
doaj   +2 more sources

Advances in seismic imaging of magma and crystal mush

open access: yesFrontiers in Earth Science, 2022
Seismic imaging methods have provided detailed three-dimensional constraints on the physical properties of magmatic systems leading to invaluable insight into the storage, differentiation and dynamics of magma.
Michele Paulatto   +5 more
doaj   +4 more sources

Multiple mush generations provide insight into the longevity of open-conduit basaltic volcanoes [PDF]

open access: yesScientific Reports
Investigating the dynamics and timescales of magmatic processes in open-conduit basaltic volcanoes is crucial for improving our understanding of explosive eruptions and better assessing volcanic hazards.
Beatrice Schiavon   +9 more
doaj   +2 more sources

Consequences of a crystal mush-dominated magma plumbing system: a mid-ocean ridge perspective. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2019
Crystal mush is rapidly emerging as a new paradigm for the evolution of igneous systems. Mid-ocean ridges provide a unique opportunity to study mush processes: geophysical data indicate that, even at the most magmatically robust fast-spreading ridges, the magma plumbing system typically comprises crystal mush.
Lissenberg CJ, MacLeod CJ, Bennett EN.
europepmc   +5 more sources

The thickness of the crystal mush on the floor of the Bushveld magma chamber. [PDF]

open access: yesContrib Mineral Petrol, 2017
The thickness of the crystal mush on magma chamber floors can be constrained using the offset between the step-change in the median value of dihedral angles formed at the junctions between two grains of plagioclase and a grain of another phase (typically clinopyroxene, but also orthopyroxene and olivine) and the first appearance or disappearance of the
Holness MB, Cawthorn RG, Roberts J.
europepmc   +5 more sources

Annual-to-millennial fluctuations in the physical properties of crystal-rich magma storage zones [PDF]

open access: yesCommunications Earth & Environment
Basaltic melts may variably disaggregate macrocrysts (large crystals) from crystal mushes during the assembly of magma bodies beneath ocean-island volcanoes.
Oliver Higgins   +6 more
doaj   +2 more sources

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