Results 11 to 20 of about 20,675 (243)

Mantle plumes [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Volcanoes are usually found near the borders of tectonic plates that are violently either pushing or pulling at each other. Mysteriously, however, volcanoes sometimes erupt in the middle of these plates instead. The culprits behind these outbursts might be giant pillars of hot molten rock known as mantle plumes, jets of magma rising up from near the ...
openaire   +2 more sources

KENGEDE MAFIC DYKE SWARM AND EXPANSION OF THE 1.50 Ga KUONAMKA LARGE IGNEOUS PROVINCE OF NORTHERN SIBERIA

open access: yesГеодинамика и тектонофизика, 2023
Within the Anabar shield in the northern part of the Siberia, Late Precambrian mafic igneous units are widespread, which form dyke swarms of different ages of different trends. This paper presents new data on the composition, structure and U-Pb dating of
M. D. Tomshin   +3 more
doaj   +1 more source

Comment on “An Active Plume Eruption on Europa During Galileo Flyby E26 as Indicated by Energetic Proton Depletions” by Huybrighs et al.

open access: yesGeophysical Research Letters, 2021
The Galileo spacecraft passed close to Europa on 11 encounters, two of which (E12 and E26) came within 400 km of the surface. In E12 data, there are perturbations in field and plasma data consistent with effects of a nearby plume (Jia et al., 2018 ...
Xianzhe Jia   +2 more
doaj   +1 more source

Subglacial Plumes

open access: yesAnnual Review of Fluid Mechanics, 2020
Buoyant plumes form when glacial ice melts directly into the ocean or when subglacial meltwater is discharged to the ocean at depth. They play a key role in regulating heat transport from the ocean to the ice front, and in exporting glacial meltwater to the open ocean.
openaire   +2 more sources

Dilution factor and atmospheric dispersion pattern for Kalpakkam site

open access: yesRadiation Protection and Environment, 2022
Assessment of radiological impact and for planning and preparedness programs, monthly atmospheric dispersion patterns at Kalpakkam have been studied using observed surface meteorological data during 2015–2020. The influence of meteorological factors such
T Jesan   +4 more
doaj   +1 more source

The interactions between ULF waves and cold charged particles in the Earth's magnetosphere

open access: yes地球与行星物理论评, 2022
In the solar wind-magnetosphere coupling processes, many kinds of plasma waves can be excited in the Earth's magnetosphere including ULF waves, hiss waves, chorus waves, etc. Among these waves, ULF waves are featured by the lowest wave frequency (1 mHz~1
Jie Ren, Qiugang Zong
doaj   +1 more source

Subduction, collision and plumes in the epoch of the Late Paleozoic magmatism of the Magnitogorsk zone (the Southern Urals)

open access: yesЛитосфера, 2019
Subject. A systematization of Late-Paleozoic magmatic formations of the Magnitogorsk zone of the Southern Urals in the process of an accretion of the Magnitogorsk paleoarc to the margin of the East European continent (EEC) with formation in Famenian and ...
D. N. Salikhov   +3 more
doaj   +1 more source

Plume Versus Slab-Pull: Example from the Arabian Plate

open access: yesFrontiers in Earth Science, 2021
Mantle convection and the interaction of buoyant plumes with the lithosphere have been a significant influence on plate tectonics. Plume-lithosphere interactions have been regarded as a major driver of continental rifting, and have been linked to triple ...
Thamer Z. Aldaajani   +2 more
doaj   +1 more source

Interferometry of Gas-Phase Flows during Selective Laser Melting

open access: yesApplied Sciences, 2019
Gas-phase flows occurring in a plume in a processing zone during selective laser melting (SLM) can significantly affect the quality of the process. To further enhance SLM performance, the characteristics of the flows should be considered. In this article,
Pavel A. Podrabinnik   +4 more
doaj   +1 more source

The 3D Direct Simulation Monte Carlo Study of Europa’s Gas Plume

open access: yesUniverse, 2022
Europa has been spotted as having water outgassing activities by space- and ground-based telescopes as well as reanalysis of the Galileo data. We adopt a 3D Direct Simulation Monte Carlo (DSMC) model to investigate the observed plume characteristics of ...
Wei-Ling Tseng   +4 more
doaj   +1 more source

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