Results 31 to 40 of about 245,175 (372)
Onset of solid-state mantle convection and mixing during magma ocean solidification [PDF]
, 2016 ©2017. American Geophysical UnionThe energy sources involved in the early stages of the formation of terrestrial bodies can induce partial or even complete melting of the mantle, leading to the emergence of magma oceans. The fractional crystallization of
Breuer, Doris +5 more
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Proceedings 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 +3 more sources
The Surtsey Magma Series [PDF]
Scientific 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
Metal Injection Molding (MIM) of NdFeB Magnets
EPJ Web of Conferences, 2014 Due to the increased and unstable prices for Rare Earth elements there are activities to develop alternative hard magnetic materials. Reducing the amount of material necessary to produce complex sintered NdFeB magnets can also help to reduce some of the ...
Hartwig T. +3 more
doaj +1 more source
Fano 3-folds in codimension 4, Tom and Jerry, Part I [PDF]
, 2011 This work is part of the Graded Ring Database project [GRDB], and is a sequel to [Altinok's 1998 PhD thesis] and [Altinok, Brown and Reid, Fano 3-folds, K3 surfaces and graded rings, in SISTAG (Singapore, 2001), Contemp. Math. 314, 2002, pp. 25-53].
Altınok +9 more
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Geochemistry, 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
Substitutional effects of In by Cu in CeIn2
EPJ 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
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Formation and dynamics of magma reservoirs
Philosophical 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
Frontiers in Earth Science, 2019 Minor seismicity may occur at volcanoes with hydrothermal system before a steam eruption. To forecast any steam eruption, it is indispensable to detect and understand the nature of this shallow seismicity. As the fumarolic gas resides in the hydrothermal
Takeshi Ohba +6 more
doaj +1 more source
Magmatic Densities Control Erupted Volumes in Icelandic Volcanic Systems
Frontiers in Earth Science, 2018 Magmatic density and viscosity exert fundamental controls on the eruptibility of magmas. In this study, we investigate the extent to which magmatic physical properties control the eruptibility of magmas from Iceland's Northern Volcanic Zone (NVZ).
Margaret Hartley +2 more
doaj +1 more source