Results 41 to 50 of about 1,154,465 (152)

Investigating effects from restricted diffusion in multi-component diffusion data [PDF]

open access: yes, 2014
We have investigated model systems in which effects from non-Gaussian restricted diffusion could be separated from effects caused by multiple diffusion coefficients. We applied various models to analyze the experimental data.
Pavlin, Tina, Seland, John Georg
core   +1 more source

3D Diffusion of Water in Melt Inclusion‐Bearing Olivine Phenocrysts

open access: yesGeochemistry, Geophysics, Geosystems
Olivine‐hosted melt inclusions are an important archive of pre‐eruptive processes such as magma storage, mixing and subsequent ascent through the crust.
Euan J. F. Mutch   +2 more
doaj   +1 more source

Using Diffusion-Diffusion Exchange Spectroscopy to observe diffusion exchange in yeast [PDF]

open access: yes, 2019
The permeability of cell membranes varies significantly across both healthy and diseased tissue, and changes in cell membrane permeability can occur during treatment response in tumours.
Roberts, Thomas   +7 more
core   +1 more source

Constraining the Impact of Post‐Entrapment Crystallization Correction Algorithms on Melt Inclusion Compositions and Petrological Interpretations With MagmaPEC

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Olivine‐hosted melt inclusions give unique information about primary melt differentiation, magma storage conditions, and their volatile contents, but their compositions are typically affected by post‐entrapment processes. Corrections for post‐entrapment crystallization (PEC) are often done numerically and their results shape interpretations of
T. D. van Gerve, O. Namur, A. Borst
wiley   +1 more source

Structure of the NE Oman Mountains: A Review of Robust Geochronological Constraints for Tectonic Models of Ophiolite Obduction and Continental Subduction

open access: yesTectonics, Volume 44, Issue 8, August 2025.
Abstract The Late Cretaceous Semail ophiolite, Oman was emplaced onto the previously passive continental margin of Arabia. Recent geochronology from the ophiolite, its metamorphic sole, and associated high‐pressure (HP) metamorphic rocks have resulted in a proliferation of new tectonic models explaining the sequence of events associated with ophiolite ...
Michael P. Searle   +2 more
wiley   +1 more source

Lava Rheological Evolution and Flow Emplacement During the Deep Submarine Fani Maoré Eruption (Mayotte)

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract The 2018–2020 lava flow field that built the submarine Fani Maoré volcano (Mayotte, north Mozambique Channel) at a water depth of 3,300 m was extensively sampled. We use the petrological analysis of samples collected at high spatial and temporal resolution to provide information on the textural evolution of the submarine lavas and its impacts ...
Pauline Verdurme   +7 more
wiley   +1 more source

Insights into the magma plumbing system architecture beneath an off-ridge ocean island (Terceira, Azores) from crystal zoning

open access: yesVolcanica
Understanding the architecture and dynamics of crustal magmatic plumbing systems is essential for interpreting volcanic processes and eruption styles in ocean island settings.
Kat Shepherd   +10 more
doaj   +1 more source

Molecular diffusion under confinement [PDF]

open access: yes, 2005
With reference to molecular transport in manifold media of porous structure, a survey is given on the ample spectrum of diffusion phenomena under confinement.
Kärger, Jörg
core   +1 more source

Discovery of the William's Ridge and Rig Seismic Seamount Microcontinents, Kerguelen Plateau: Signatures of a Fragmented Rifted Margin

open access: yesTectonics, Volume 44, Issue 6, June 2025.
Abstract The Kerguelen large igneous province (LIP), situated dominantly in the southern Indian Ocean, has several exceptional characteristics. These include an episodic and protracted formation over a ∼130 Myr period, sustaining the longest, continuous high‐magma‐flux emplacement interval of any LIP (>38 Myr), and the preservation of multiple ...
Jeremy L. Asimus   +7 more
wiley   +1 more source

Petrology, magma mixing, mush mobilization, and timescales of the 1874 A.D. Meiji fissure eruption of Miyakejima, Japan

open access: yesFrontiers in Earth Science
To understand the processes occurring in shallow magmatic plumbing systems during the generation of effusive flank eruptions, we investigated the petrology and geochemistry of the products of the 1874 A.D. Meiji eruption of Miyakejima, Japan.
D. J. Weller   +9 more
doaj   +1 more source

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