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High CO2 in the mantle source of ocean island basanites

Lo Forte F.M., Schiavi F., Rose-Koga E.F., Rotolo S.G., Verdier-Paoletti M., Aiuppa A., Zanon V.

Geochimica et Cosmochimica Acta, 368, 93–111

Some of the most CO2-rich magmas on Earth are erupted by intraplate ocean island volcanoes. Here, we characterise olivine-hosted melt inclusions from recent (<10 ky) basanitic tephra erupted by Fogo, the only active volcano of the Cape Verde Archipelago...

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Experimental insights on the shear-induced crystallization of a phonotephrite magma

Di Fiore F., Vona A., Mollo S., Nazzari M., Giordano G., Romano C.

Chemical Geology, 637, 121682

In active volcanic environments, magmas that ascend within the conduit and erupt at the surface as lava flows experience physico-chemical perturbations related to temperature changes and variable degrees of deformation. We have conducted experimental...

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The formation and growth mechanisms of young back-arc spreading ridges from high-resolution bathymetry: The Marsili Seamount (Tyrrhenian Sea, Italy)

Nicotra E., Passaro S., Ventura G.

Geoscience Frontiers 15, 101723

The formation and growth mechanisms of Mid-Ocean Ridges (MOR) are relatively well known, whereas those of back-arc spreading ridges are comparatively less known because geophysical, geochemical, and morphological data are scarce and of low density. Here...

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PROMETHEUS: Probability in the Mediterranean of Tephra dispersal for various grain sizes. A tool for the evaluation of the completeness of the volcanic record in medial-distal archives.

Billotta E., Sulpizio R., Selva J., Costa A., Bebbington M.

Journal of Volcanology and Geothermal Research, 447, 108031

PROMETHEUS is a statistical tool that allows creating maps showing the probability of finding tephra deposits of different grain sizes, originating from eruptions of a specific volcanic source, at any location around the vent. It couples wind profiles...

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Surveying volcanic crises exercises: From open-question questionnaires to a prototype checklist

Massaro S., Sandri L., Geyer A., Cristiani C., Nave R., Barsotti S., Loughlin S., Puglisi G.

Journal of Volcanology and Geothermal Research, Volume 440, August 2023, 107850

Volcanic crisis exercises are usually run to test response capabilities, communication protocols, and decision-making procedures by agencies with responsibilities to cope with scenarios of volcanic unrest with inherent uncertainty, such as volcano observatories...

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