Results 11 to 20 of about 1,257,317 (288)

Melt extraction from a permeable compacting mantle [PDF]

open access: yes, 2012
In this thesis, I present one- and three-dimensional numerical solutions to a two-phase fluid flow problem. The context of these investigations is the evolution of a viscous permeable matrix with a small fraction of melt that is representative of partial
Webb, Peter James
core   +6 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

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

Magmatic Activity and Dynamics of Melt Supply of Volcanic Centers of Ultraslow Spreading Ridges: Hints From Local Earthquake Tomography at the Knipovich Ridge

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Along ultraslow spreading ridges melt is distributed unequally, but melt focusing guides melt away from amagmatic segments toward volcanic centers. An interplay of tectonism and magmatism is thought to control melt ascent, but the detailed process of ...
M. Meier, V. Schlindwein, F. Schmid
doaj   +1 more source

Channelized melt flow in downwelling mantle: Implications for 226Ra-210Pb disequilibria in arc magmas [PDF]

open access: yes, 2008
We present the results of an analytical model of porous flow of viscous melt into a steadily dilating ‘‘channel’’ (defined as a cluster of smaller veins) in downwelling subarc mantle.
Koenders, M. A.   +7 more
core   +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

Experimental investigation of hydrodynamics of melt layer during laser cutting of steel [PDF]

open access: yes, 2011
In laser cutting process, understanding of hydrodynamics of melt layer is significant, because it is an important factor which controls the final quality. In this work, we observed hydrodynamics of melt layer on kerf front in the case of laser cutting of
Remy Fabbro   +3 more
core   +1 more source

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