A Mesoscale Study of the Element Composition of Aerosols Emitted from Mt. Etna Volcano
Résumé
An aircraft survey was carried out for the study of the gaseous and particulate emissions over Mt Etna Volcano in September 1983. Samples were collected in the range from 10 to 300 km; a satisfying conservation of the elemental composition of the aerosol has been observed. Some activity fluctuation, 150 km from the emitter, was attributed to an ash fall episode. Sampling assumed that some crustal elements in the volcanic aerosol can be used to measure the plume dilution factor. New estimations of volcanic particulate fluxes are given.