Results 31 to 40 of about 18,310,087 (195)

Infrasonic gliding reflects a rising magma column at Mount Etna (Italy)

open access: yesScientific Reports, 2022
Infrasound is increasing applied as a tool to investigate magma dynamics at active volcanoes, especially at open-vent volcanoes, such as Mt. Etna (Italy), which are prodigious sources of infrasound. Harmonic infrasound signals have been used to constrain
Mariangela Sciotto   +5 more
doaj   +1 more source

A Data-Based Minimal Model of Episodic Inflation Events at Volcanoes

open access: yesFrontiers in Earth Science, 2022
Space geodetic time series, be they ground-based or space-based, have increased in length and accuracy. These series can now be mined for information on the qualitative dynamics of volcanic systems directly from surface deformation data.
Damian Walwer   +4 more
doaj   +1 more source

Insight into subvolcanic magma plumbing systems [PDF]

open access: yesGeology, 2007
The Island of Hawaii, which is among the best-studied volcanic islands on Earth, provides lush ground for debates in volcanology that focus on how magmatic systems evolve in space and time. Hawaiian volcanoes evolve through four eruptive stages that are characterized by distinct composition ...
openaire   +2 more sources

Interplinian effusive activity at Popocatépetl volcano, Mexico: New insights into evolution and dynamics of the plumbing system

open access: yesVolcanica, 2019
Effusive eruptions dominate the eruptive record of many arc volcanoes and may hold crucial information about their plumbing systems, yet they are underrepresented in geochemical and petrological studies.
Martin Friedrich Mangler   +4 more
doaj   +1 more source

Deep Magma Transport Control on the Size and Evolution of Explosive Volcanic Eruptions

open access: yesFrontiers in Earth Science, 2021
Explosive eruptions are the surface manifestation of dynamics that involve transfer of magma from the underground regions of magma accumulation. Evidence of the involvement of compositionally different magmas from different reservoirs is continuously ...
Simone Colucci, Paolo Papale
doaj   +1 more source

Ankaramite from Tenerife: a novel geothermobarometric approach to gain insights into the depth of a magma plumbing system [PDF]

open access: yesEuropean Journal of Mineralogy
This study investigates the magma plumbing system of the Miocene volcano shield stage of Tenerife (Canary Islands) through a geothermobarometric analysis of clinopyroxenes in ankaramite dykes and lavas from the Teno and Roque del Conde massifs ...
L. Barni   +7 more
doaj   +1 more source

Modeling the Intermittent Lava Lake Drops Occurring Between 2015 and 2021 at Nyiragongo Volcano

open access: yesGeophysical Research Letters, 2023
Between 2015 and 2021, Nyiragongo's lava lake level experienced a linear increase punctuated by fast intermittent drops. These drops occurred synchronously to seismic swarm at approximately 15 km below the surface and extending laterally NE from the ...
D. Walwer   +5 more
doaj   +1 more source

Understanding Fast and Slow Unrest at Volcanoes and Implications for Eruption Forecasting

open access: yesFrontiers in Earth Science, 2018
This paper examines the behavior of volcanoes that erupt quickly with paroxysmal explosive eruptions, and other volcanoes that erupt over extended periods without such paroxysmal activity.
John Stix
doaj   +1 more source

The Interconnected Magmatic Plumbing System of the Natron Rift

open access: yesGeophysical Research Letters, 2022
Understanding the magmatic plumbing system of rift volcanoes is essential when examining the interplay between magmatic and tectonic forces. Recent seismicity, volcanic activity, magma emplacement, and volatile release make the Natron basin the ideal ...
M. C. Reiss, L. DeSiena, J. D. Muirhead
doaj   +1 more source

Clinopyroxene Crystals in Basic Lavas of the Marsili Volcano Chronicle Early Magmatic Stages in a Back-Arc Transcrustal Mush System

open access: yesGeosciences, 2021
Constraining the pre-eruptive processes that modulate the chemical evolution of erupted magmas is a challenge. An opportunity to investigate this issue is offered by the interrogation of the crystals carried in lavas.
Teresa Trua, Michael P. Marani
doaj   +1 more source

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