1. Only on the islet Yiali which consists exclusively of acid lavas (pumice stones, rhyolite, perlite) fossiliferous layers of marly limestone, sandstone and konglomerate are found, as much at the sea level as in the top of the layers of pumice stone, of tyrrhenian age.

Seulement dans la petite île Jali qui se compose exclusivement de laves acides, il y a des couches fossilifères tyrrhéniennes de calcaire marneux, de grès et de conglomérat.