P
Patrick Allard
Researcher at Centre national de la recherche scientifique
Publications - 72
Citations - 5949
Patrick Allard is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Volcano & Magma. The author has an hindex of 42, co-authored 69 publications receiving 5513 citations. Previous affiliations of Patrick Allard include Institut de Physique du Globe de Paris & University of Palermo.
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Journal ArticleDOI
Eruptive and diffuse emissions of CO2 from Mount Etna
Patrick Allard,J. Carbonnelle,D. Dajlevic,J. Le Bronec,P. Morel,M.C. Robe,J. M. Maurenas,R. Faivre-Pierret,D. Martin,J. C. Sabroux,P. Zettwoog +10 more
TL;DR: In this article, the authors used data collected from 1975 to 1987 to estimate carbon dioxide emissions from the summit craters and the upper flanks of the volcano and found that the average output of CO2 from summit crater degassing is 13±3 Tg yr−1, an order of magnitude higher than the annual CO2 output from Kilauea, Hawaii, and representative arc volcanoes.
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Sulphur output and magma degassing budget of Stromboli volcano
TL;DR: In this article, air-borne measurements of the plume flux of Stromboli volcano during 1980-93 show that the volcano emits very large amounts of gas, mostly by open-conduit degassing between explosive outbursts, while exuding little basalt.
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Melt inclusion record of the conditions of ascent, degassing, and extrusion of volatile-rich alkali basalt during the powerful 2002 flank eruption of Mount Etna (Italy)
TL;DR: In this article, the authors decipher the origin and mechanisms of the second eruption from the composition and volatile (H2O, CO2, S, Cl) content of olivine-hosted melt inclusions in explosive products from its south flank vents.
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Magmatic Gas Composition Reveals the Source Depth of Slug-Driven Strombolian Explosive Activity
Mike Burton,Mike Burton,Mike Burton,Patrick Allard,Patrick Allard,Patrick Allard,F. Murè,F. Murè,F. Murè,Alessandro La Spina,Alessandro La Spina,Alessandro La Spina +11 more
TL;DR: Spectroscopic measurements performed during both quiescent degassing and explosions on Stromboli volcano are used to demonstrate that gas slugs originate from as deep as the volcano-crust interface (∼3 kilometers), where both structural discontinuities and differential bubble-rise speed can promote slug coalescence.
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Mobility and fluxes of major, minor and trace metals during basalt weathering and groundwater transport at Mt. Etna volcano (Sicily)
Alessandro Aiuppa,Patrick Allard,Walter D'Alessandro,Agnès Michel,Francesco Parello,M. Treuil,Mariano Valenza +6 more
TL;DR: In this paper, the concentrations and fluxes of major, minor and trace metals were determined in 53 samples of groundwaters from around Mt Etna, in order to evaluate the conditions and extent of alkali basalt weathering by waters enriched in magma-derived CO 2 and the contribution of aqueous transport to the overall metal discharge.