Results 21 to 30 of about 616 (171)
Asynchronous transfer of magmas and mineralizing fluids in a plutonic-subvolcanic-volcanic plumbing system. [PDF]
Sci RepAbstract The geochronological-geochemical interplay between magma transfer and mineralizing fluid is studied at Campiglia igneous complex, Tuscany. Here, crustal and mantle-derived magmas were emplaced at plutonic, subvolcanic, and volcanic level (5.4 to 4.4 Ma), and were quickly exhumed, thus allowing U-Pb CA-ID-TIMS
Paoli G +4 more
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Nyamulagira’s magma plumbing system inferred from 15 years of InSAR [PDF]
Geological Society, London, Special Publications, 2013 Abstract Nyamulagira, located in the east of the Democratic Republic of Congo on the western branch of the East African rift, is Africa’s most active volcano, with an average of one eruption every 3 years since 1938. Owing to the socio-economical context of that region, the volcano lacks ground-based geodetic measurements but has
Wauthier, Christelle +8 more
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Moon's ancient magma plumbing system [PDF]
Science, 2014 Planetary Science Several kilometers below a lunar dark spot called Oceanus Procellarum lies a giant rectangle: the remnants of a geological plumbing system that spilled lava across the Moon 3.5 billion years ago, scientists say. Andrews-Hanna et al. studied density variations on the Moon's surface, mapped by NASA's GRAIL (Gravity Recovery and Interior
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The dynamics of dual-magma-chamber system during volcanic eruptions inferred from physical modeling
Earth, Planets and Space, 2021 A magma plumbing system with dual magma chambers beneath active volcanoes is commonly observed through petrological and geophysical measurements. This paper developed a physical model for the dynamics of a dual-magma-chamber system during volcanic ...
Tomofumi Kozono
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Infrasonic gliding reflects a rising magma column at Mount Etna (Italy)
Scientific 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
Frontiers 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
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Insight into subvolcanic magma plumbing systems [PDF]
Geology, 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
Volcanica, 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
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Deep Magma Transport Control on the Size and Evolution of Explosive Volcanic Eruptions
Frontiers 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
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Ankaramite from Tenerife: a novel geothermobarometric approach to gain insights into the depth of a magma plumbing system [PDF]
European Journal of MineralogyThis 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
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