BackgroundThe Pontine Islands are Plio-Pleistocene in age, ranging from 4.2-1.0 Ma (Scandone, 1987, pers. comm.; Peccerillo, 2005). The islands are mostly formed of Pliocene rhyolites and Pleistocene trachytes and alkaline rhyolites. Volcanic products also consist of obsidian lava flows, domes, dykes, breccias, and hydromagmatic products. The rhyolitic volcanic activity on Ponza occured between 4.2 and 3.0 Ma, followed by trachytic activity at about 1.0 Ma. The eruptive activity on Palmarola occured around 1.6 Ma (Peccerillo, 2005).
Smithsonian / GVP volcano information
Pontine Islands Photos
3 of the small volcanic Pontine Islands in the Thyrrenian Sea, seen from the plane towards Catania where the tour starts: Palmarola (l), Ponza (c) and tiny Zannone . (Pho...
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