SfondoIblei consists of mostly submarine volcanics with some subaerial deposits; however, there is no clear volcanic edifice (Scandone, 1987, pers. comm.). The volcanic features consist mostly of monogenetic cones, maars, and lava flows of basaltic to andesitic composition; the older Pliocene submarine products are pillow lavas and hyaloclastites (Peccerillo, 2005). The youngest volcanic products are K-Ar dated at 1.7 Ma, but volcanism is believed to have taken place from 4.9 to 1.5 Ma (Capaldi et al., 1985; Peccerillo, 2005).
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS