Results 21 to 30 of about 5,403,170 (324)

Mesoscale and microscopic structures record compaction and crystal-melt segregation in silicic mushes. [PDF]

open access: yesSci Rep
Gravitationally-driven compaction has been proposed as an important mechanism for crystal-melt segregation in silicic mushes. However, there is no microstructural evidence of crystal deformation consistent with compaction in silicic plutonic rocks.
Liu YC, Jiang YH, Han BN.
europepmc   +2 more sources

Early-Stage Melt-Rock Reaction in a Cooling Crystal Mush Beneath a Slow-Spreading Mid-Ocean Ridge (IODP Hole U1473A, Atlantis Bank, Southwest Indian Ridge)

open access: yesFrontiers in Earth Science, 2020
Microtextural and chemical evidence from gabbros indicates that melts may react with the crystal framework as they migrate through crystal mushes beneath mid-ocean ridges; however, the importance of this process for the compositional evolution of ...
Alessio Sanfilippo   +7 more
doaj   +2 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

Feasibility of melt segregation from a crystal mush in response to the 2011–2012 eruption at Cordón Caulle, Chile

open access: yesGeophysical Journal International, 2023
The 2011–2012 eruption at Cordón Caulle in Chile produced crystal-poor rhyolitic magma with crystal-rich mafic enclaves whose interstitial glass is of identical composition to the host rhyolite.
Patrick R. Phelps   +6 more
semanticscholar   +1 more source

Interfacial growth morphologies in dense eutectic crystal mushes

open access: yesIMA Journal of Applied Mathematics, 2023
Abstract We consider the interfacial growth morphologies of crystals growing in contact in crystal mushes, with a specific application to those formed by the solidification of basaltic magma. We focus on the particular case of an augite (pyroxene) crystal growing between two plagioclase crystals.
Fowler, Andrew, Holness, Marian B.
openaire   +3 more sources

Viscosity of crystal-mushes and implications for compaction-driven fluid flow

open access: yesJournal of Geophysical Research: Solid Earth, 2022
Journal of Geophysical Research: Solid Earth, 127 (9)
James Alexander Denis Connolly   +1 more
  +5 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   +1 more source

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

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