Results 1 to 10 of about 68,782 (195)

Lithium, Oxygen and Magnesium Isotope Systematics of Volcanic Rocks in the Okinawa Trough: Implications for Plate Subduction Studies

open access: yesJournal of Marine Science and Engineering, 2021
Determining the influence of subduction input on back-arc basin magmatism is important for understanding material transfer and circulation in subduction zones.
Zhigang Zeng   +3 more
doaj   +1 more source

Image-based modelling of lateral magma flow: the Basement Sill, Antarctica [PDF]

open access: yesRoyal Society Open Science, 2017
The McMurdo Dry Valleys magmatic system, Antarctica, provides a world-class example of pervasive lateral magma flow on a continental scale. The lowermost intrusion (Basement Sill) offers detailed sections through the now frozen particle microstructure of
Nick Petford, Seyed Mirhadizadeh
doaj   +1 more source

High‐Speed 3D Imaging of Multiphase Systems: Applying SCAPE Microscopy to Analog Experiments in Volcanology and Earth Sciences

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Multiphase suspensions are complex systems where microscopic interactions between suspended bubbles, particles, and liquids can significantly alter bulk behavior.
J. Oppenheimer   +4 more
doaj   +1 more source

Flow‐To‐Fracture Transition of Linear Maxwell‐Type Versus Yield Strength Fluids by Air Injection—Implications for Magma Fracturing

open access: yesGeophysical Research Letters, 2023
To illuminate brittle and ductile fracturing of magma, we investigated bubble expansion and fracturing in two contrasting fluids: a Maxwell‐type viscoelastic fluid and a Bingham‐type yield‐strength fluid.
Claudia Sánchez   +2 more
doaj   +1 more source

Shear Velocity Evidence of Upper Crustal Magma Storage Beneath Valles Caldera

open access: yesGeophysical Research Letters, 2023
Valles Caldera was formed by large rhyolitic eruptions at ∼1.6 and 1.23 Ma and it hosts post‐caldera rhyolitic deposits as young as ∼69 ka, but the contemporary state of the magmatic system is unclear.
Justin Wilgus   +4 more
doaj   +1 more source

Rifting‐Driven Magmatism Along the Dead Sea Continental Transform Fault

open access: yesGeophysical Research Letters, 2023
The Dead Sea Fault (DSF) is a crustal‐scale continental transform fault separating the African and the Arabian plates. Neogene to Quaternary volcanic activity is well‐spread in Northern Israel.
A. Haddad   +6 more
doaj   +1 more source

Eruptible magma [PDF]

open access: yesProceedings of the National Academy of Sciences, 2016
For those who remember the classic disaster-docudrama Supervolcano (BBC-Discovery Channel 2005), the adjective “eruptible” is likely to ring a bell. Set in the near future and generally quite scientifically literate, the movie envisions volcanologists trying desperately to evaluate the near-term threat posed by the giant Yellowstone magmatic system. At
openaire   +2 more sources

Hydrogen Isotope Composition of a Large Silicic Magma Reservoir Preserved in Quartz‐Hosted Glass Inclusions of the Bishop Tuff Plinian Eruption

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Water controls magmatic crystallization and drives volcanic eruptions, but little is known about its primary source in silicic systems. The hydrogen isotope composition of volcanic products provides a metric that can track and identify magmatic source ...
Kenneth S. Befus   +3 more
doaj   +1 more source

Free Magmas [PDF]

open access: yesFormalized Mathematics, 2010
Free Magmas This article introduces the free magma M(X) constructed on a set X [6]. Then, we formalize some theorems about M(X): if f is a function from the set X to a magma N, the free magma M(X) has a unique extension of f to a morphism of M(X) into N and every magma is isomorphic to a magma generated by a set X under a set of relators on M(X)
openaire   +3 more sources

A Data Driven Approach to Investigate the Chemical Variability of Clinopyroxenes From the 2014–2015 Holuhraun–Bárdarbunga Eruption (Iceland)

open access: yesFrontiers in Earth Science, 2020
The Holuhraun–Bárdarbunga (Iceland) eruption lasted approximately 6 months. Magma propagated laterally through a 40 km long dyke, while Bárdarbunga caldera was collapsing.
Luca Caricchi   +6 more
doaj   +1 more source

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