Results 21 to 30 of about 105,255 (290)

Redox state of Earth’s magma ocean and its Venus-like early atmosphere

open access: yesScience Advances, 2020
Oxidation state of iron in Earth’s magma ocean indicates it would have produced a Venus-like early atmosphere upon cooling. Exchange between a magma ocean and vapor produced Earth’s earliest atmosphere. Its speciation depends on the oxygen fugacity (fO2)
P. Sossi   +5 more
semanticscholar   +1 more source

Characteristic of Lokon Volcano Deformation of 2009 - 2011 Based on GPS Data

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v7i4.147Precursor of Lokon Volcano eruptions in 2011 is believed to begin since December 2007 which was marked by increasing number of volcanic earthquakes and gas emission.
Estu Kriswati   +5 more
doaj   +1 more source

A possible model for initiationof ULF oscillation in magma

open access: yesAnnals of Geophysics, 2004
During the period just prior to an earthquake, an electomagnetic emission develops over seismic zones. In this paper, a model of excitation of magnetic fields over zones of volcanic activity is proposed.
L.V. Nikitina, Y. A. Kopytenko
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

The Surtsey Magma Series [PDF]

open access: yesScientific Reports, 2015
AbstractThe volcanic island of Surtsey (Vestmannaeyjar, Iceland) is the product of a 3.5-year-long eruption that began in November 1963. Observations of magma-water interaction during pyroclastic episodes made Surtsey the type example of shallow-to-emergent phreatomagmatic eruptions. Here, in part to mark the 50thanniversary of this canonical eruption,
Sveinn P. Jakobsson   +4 more
openaire   +3 more sources

Substitutional effects of In by Cu in CeIn2

open access: yesEPJ Web of Conferences, 2014
We have investigated the evolution of the magnetic properties on the Ce(In1−x Cux)2 (0< x ≤ 0.3) series of alloys. The orthorhombic structure of the CeIn2 alloy(Imma)changes into the hexagonal AlB2-type (P6/mmm)for x = 0.05 and, then, into the hexagonal ...
Rojas D. P.   +2 more
doaj   +1 more source

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

Formation and dynamics of magma reservoirs

open access: yesPhilosophical Transactions of the Royal Society A, 2019
The emerging concept of a magma reservoir is one in which regions containing melt extend from the source of magma generation to the surface. The reservoir may contain regions of very low fraction intergranular melt, partially molten rock (mush) and melt ...
R. Sparks   +6 more
semanticscholar   +1 more source

Field evidence for the lateral emplacement of igneous dykes

open access: yesVolcanica, 2018
Seismological and geodetic data from modern volcanic systems strongly suggest that magma is transported significant distance (tens of kilometres) in the subsurface away from central volcanic vents.
David Healy   +5 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

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