Results 1 to 10 of about 33,248 (164)

Transient rhyolite melt extraction to produce a shallow granitic pluton. [PDF]

open access: yesSci Adv, 2021
Shallow high-silica granites provide a window into processes that may precede many styles of rhyolitic volcanic eruptions.
Schaen AJ   +6 more
europepmc   +5 more sources

A model of episodic melt extraction for plumes [PDF]

open access: yesJournal of Geophysical Research, 2006
A model of melt segregation and extraction within rising plumes is proposed. It is based on two‐phase porous flow within the partially molten region, combined with only three extraction parameters. The conservation equations of mass, momentum, and energy are solved for a two‐phase melt matrix system.
exaly   +2 more sources

Melt extraction from partially molten peridotites

open access: yesGeochemistry, Geophysics, Geosystems, 2003
We measured the rate of melt extraction from partially molten olivine aggregates into a porous reservoir as a function of melt content (ϕ), melt viscosity, grain size, and pressure difference. Samples were prepared using mixtures of olivine and either lithium silicate, MORB glass, or albite glass to obtain a range in melt viscosities.
Jörg Renner   +2 more
exaly   +2 more sources

MeltPondNet: A Swin Transformer U-Net for Detection of Melt Ponds on Arctic Sea Ice

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
High-resolution aerial photographs of Arctic region are a great source for different sea ice feature recognition, which are crucial to validate, tune, and improve climate models.
Ivan Sudakow   +3 more
doaj   +1 more source

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

Design of Fe-containing GdTbCoAl high-entropy-metallic-glass composite microwires with tunable Curie temperatures and enhanced cooling efficiency

open access: yesMaterials & Design, 2021
Through designing the composition and processing approach, the non-equiatomic (Gd36Tb20Co20Al24)100-xFex (x = 0, 1, 2 and 3 at.%) high-entropy-metallic-glass (HE-MG) alloy microwires were successfully fabricated by melt-extraction technique.
Hangboce Yin   +7 more
doaj   +1 more source

Compositional Data Analysis (CoDA) of Clinopyroxene From Abyssal Peridotites

open access: yesGeochemistry, Geophysics, Geosystems, 2022
We analyze a large database of abyssal peridotite clinopyroxene compositions using log‐ratio transformation, principal component analysis (PCA) and k‐means clustering, to better understand clinopyroxene compositional systematics in abyssal peridotites ...
I. Nishio   +5 more
doaj   +1 more source

Large Silicic Eruptions, Episodic Recharge, and the Transcrustal Magmatic System

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Large silicic eruptions result from rapid evacuation of large, upper crustal reservoirs of silicic magmas. These silicic magmas are thought to be replenished by melt extracted from underlying crystal‐rich source mushes, but the timescales and mechanisms ...
Boda Liu, Cin‐Ty Lee
doaj   +1 more source

Porosity evolution of mafic crystal mush during reactive flow

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   +1 more source

Monitoring of Supraglacial Lake Distribution and Full-Year Changes Using Multisource Time-Series Satellite Imagery

open access: yesRemote Sensing, 2023
Change of supraglacial lakes (SGLs) is an important hydrological activity on the Greenland ice sheet (GrIS), and storage and drainage of SGLs occur throughout the year.
Dongyu Zhu   +4 more
doaj   +1 more source

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