Results 1 to 10 of about 424 (106)

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   +2 more sources

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   +2 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

Magma convection favors ephemeral melt-rich bodies within mushy reservoirs [PDF]

open access: yesNature Communications
Magma convection is a mechanism that greatly enhances heat transfer from mobilizable, crystal-poor magma bodies to the surrounding immobile, crystal-rich mush reservoir of Earth’s igneous systems.
Jie Chen   +2 more
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   +3 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

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   +2 more sources

Enhanced crystal-melt segregation within dynamic mush systems links silicic cumulates with caldera-forming eruptions [PDF]

open access: yesNature Communications
Supported by the mush model, the origin of crystal-poor, high-silica rhyolitic magmas (≥ 75 SiO₂ wt.%) is commonly linked to melt extraction in shallow, crystalline mushes, yet their complementary cumulates remain elusive in the upper crust.
Lucas M. Lino   +8 more
doaj   +2 more sources

Schlieren-Bound Magmatic Structures Record Crystal Flow-Sorting in Dynamic Upper-Crustal Magma-Mush Chambers

open access: yesFrontiers in Earth Science, 2020
The size, longevity, and mobility of upper-crustal magma mushes, and thus their ability to mix and interact with newly arriving magma batches, are key factors determining the evolution of magma reservoirs.
Katie E. Ardill   +7 more
doaj   +3 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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