Abstract
The central part of the Island of Pantelleria is occupied by a caldera depression of ellipsoidal form, the major diameter of which is about 7 kilometers. The collapse causing the caldera to form seems to have taken place after a complex eruption which led to the extrusion of a great endogenous dome, the formation of which was followed by a localized explosive activity. The succession of the acid volcanites of Pantelleria shows periodical evolutions of the magmas, undergoing various cycles of differentiation. After a period of quiescence a new cycle of differentiation started again. This may be explained by admitting that the differentiation was accompanied by an increase in the gas content. The violent degassing re-established conditions analogous to those which had existed at the beginning of the previous cycle.
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Villari, L. The caldera of Pantelleria. Bull Volcanol 34, 758–766 (1970). https://doi.org/10.1007/BF02596704
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DOI: https://doi.org/10.1007/BF02596704