Results 131 to 140 of about 616 (171)

Unravel subseafloor hydrothermal leaching and magmatic degassing during chimney formation at Kolumbo volcano. [PDF]

open access: yesSci Rep
Hector S   +8 more
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Constructing magma plumbing systems

2023
The structure of magma plumbing systems controls a variety of processes that are critical to keeping people safe, secure, and prosperous. These processes include the: (i) location, threat, and early warning signals of volcanic eruptions; (ii) accumulation of magma-related ore deposits; and (iii) distribution of subsurface heat.
Craig Magee, Christopher Jackson
openaire   +1 more source

Magma plumbing system of the 2000 eruption of Miyakejima Volcano, Japan

Bulletin of Volcanology, 2005
During the 2000 eruption at Miyakejima Volcano, two magmas with different compositions erupted successively from different craters. Magma erupted as spatter from the submarine craters on 27 June is aphyric basaltic andesite (
Setsuya Nakada
exaly   +2 more sources

Magma plumbing beneath collapse caldera volcanic systems

Earth-Science Reviews, 2018
Abstract Advancing our knowledge of caldera volcanoes enables better assessment of hazard and more efficient harnessing of resources. In this paper we review developments in concepts of magma storage and transport during the life cycle of caldera plumbing systems.
John Stix, J W Cole, B M Kennedy
exaly   +2 more sources

The magma plumbing system for the 1971 Teneguía eruption on La Palma, Canary Islands

Contributions To Mineralogy and Petrology, 2015
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Abigaïl Barker   +2 more
exaly   +3 more sources

Magma extraction pressures and the architecture of volcanic plumbing systems

Earth and Planetary Science Letters, 2019
Abstract The deposits of large volcanic eruptions provide the sole record of the architecture of magmatic plumbing systems in the moments when large pools of crystal-poor, eruptible magma are present in the crust. It is widely accepted that silicic magmas form by segregation of melt-rich, crystal-poor magma from a crystal-rich source; however, the ...
Guilherme A.R. Gualda   +3 more
openaire   +1 more source

Magma mixing and magma plumbing systems in island arcs

Bulletin Volcanologique, 1984
Petrographic features of mixed rocks in island arcs, especially those originating by the mixing of magmas with a large compositional and temperature difference, such as basalt and dacite, suggest that the whole mixing process from their first contact to the final cooling (= eruption) has occurred continuously and in a relatively short time period. This
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Magma plumbing system beneath Ontake Volcano, central Japan

Island Arc, 1999
Ontake Volcano in central Japan was last active from ~ 100–35 Ka. The eruptions contained rhyodacite pumice and lavas in the first stage (stage O1, > 33 km3), followed by eruptions of andesite lavas and pyroclastics (stages O2 and O3, > 16 km3). Modeling of major and incompatible elements with Sr isotope ratios suggests that the primary magma was
Jun‐Ichi Kimura, Takeyoshi Yoshida
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Tectonic origin of Yellowstone’s translithospheric magma plumbing system

Science
Yellowstone is widely recognized for its crustal magma reservoirs replenished by asthenospheric melts. However, how primary melts traverse the rigid lithosphere and evolve into bimodal volcanism remains unclear. By leveraging multidisciplinary observations and a data-oriented geodynamic modeling approach, we demonstrate that magma generation and ...
Zebin Cao   +4 more
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