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Clinopyroxene Dissolution Records Rapid Magma Ascent [PDF]
Frontiers in Earth Science, 2020 Magma ascent rates control volcanic eruption styles. However, the rates at which basaltic magmas ascend through the crust remain highly uncertain. Although recent studies have successfully exploited records of decompression driven degassing to estimate ...
David A. Neave, John Maclennan
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Carbonate-capped seamount subduction accelerates CO2-rich arc magma ascent [PDF]
Nature CommunicationsSubduction transports carbon into Earth’s interior, yet how subducted carbon influences arc magma ascent dynamics remains unclear. Here we combine volatile compositions of olivine-hosted melt inclusions with olivine diffusion chronometry at Pagan volcano
Xiaohan Huang +6 more
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Role of syn-eruptive plagioclase disequilibrium crystallization in basaltic magma ascent dynamics [PDF]
Nature Communications, 2016 The quantification of timing for crystallization and exsolution processes are fundamental to our understanding of basaltic magma ascent dynamics. Here, the authors constrain timings to show that plagioclase reaches equilibrium in 1-2 hours, whereas ...
G. La Spina +3 more
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Superheating in mafic magmas controls clinopyroxene nucleation delay and magma ascent dynamics [PDF]
Nature CommunicationsCrystallisation kinetics play a fundamental role in controlling conduit dynamics and eruptive style. The degree of superheating is critical in controlling crystallisation kinetics; however, its effect is still debated and has an unclear impact on ...
Barbara Bonechi +14 more
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Amphibole reaction rims record shear during magma ascent [PDF]
Nature CommunicationsMineral reaction textures are fundamental archives of geological change. Amphibole reaction rims are among the most widely used to reconstruct pre-eruptive magmatic conditions, traditionally interpreted through changes in pressure, temperature and melt ...
Paul A. Wallace +9 more
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Frontiers in Earth Science, 2018 Volcanic eruptions occur when a conduit forms to connect a crustal magma reservoir to Earth’s surface. Conduit formation is generally assumed to be a ‘bottom–up’ process and a major driver of precursory volcanic seismicity, which is the most commonly ...
Katharine Cashman, Diana Roman
exaly +3 more sources
Coupled effects of surface erosion and magma intrusion on magmatic hazards under a changing climate [PDF]
Scientific ReportsThe impact of rainfall-driven erosion on the evolution of magmatic systems and, ultimately, on volcanic activity, is an emerging topic of critical importance in the context of the ongoing climate crisis.
Riccardo Lanari +6 more
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Comptes Rendus. Géoscience, 2021 Pantelleritic magmas are low-viscosity peralkaline rhyolites which exhibit large differences in eruptive style (explosive to effusive). The processes that promote fragmentation and explosive eruptions of pantelleritic magma remain subject to debate, but ...
Stabile, Paola +2 more
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Earth, Planets and Space, 2023 We review pre-eruptive dynamics and evidence of open-system behavior in the volcanic plumbing system beneath Campi Flegrei Caldera, together with estimates of magma residence time, magma ascent, and mixing-to-eruption timescales.
Maurizio Petrelli +3 more
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Mixing between chemically variable primitive basalts creates and modifies crystal cargoes
Nature Communications, 2021 Chemically variable primitive basalts undergo mixing during ascent from the mantle. Here the authors show observations from magma–magma reaction experiments which demonstrate how isothermal mixing between chemically variable basalts creates and modifies ...
David A. Neave +3 more
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