Sfondo

Salina is made up of calc-alkaline basaltic to andesitic stratovolcanoes (Rivi, Capo, and Corvo), which are overlain by two andesitic cones (Monte Felci and Monte Porri), the latter of which erupted about 67 ka (Peccerillo, 2005). Monte Porri also underwent intense explosive activity, producing a series of tuffs that have also been identified on other nearby islands; these eruptions also produced lahars and pyroclastic surges (Guest et al., 2003). The final eruptive activity produced basaltic-dacitic-andesitic lava flows and a rhyolitic explosion crater (Pollara) (Peccerillo, 2005; Guest et al., 2003). Pollara Crater erupted about 13,000 years before present; the rest of the island is mid-upper Pleistocene, as old as 430 to 500 k.y. old (Keller, 1974; Peccerillo, 2005;Guest et al., 2003).
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Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8