Santorini olive carbon dating eruption
), is an island in the southern Aegean Sea, about 200 km (120 mi) southeast of Greece's mainland.
It is the largest island of a small, circular archipelago, which bears the same name and is the remnant of a volcanic caldera.
The ground then slopes outwards and downwards towards the outer perimeter, and the outer beaches are smooth and shallow.
Beach sand colour depends on which geological layer is exposed; there are beaches with sand or pebbles made of solidified lava of various colours: such as the Red Beach, the Black Beach and the White Beach.
Eruptive products range from basalt all the way to rhyolite, and the rhyolitic products are associated with the most explosive eruptions.In between the caldera-forming eruptions are a series of sub-cycles.Lava flows and small explosive eruptions build up cones, which are thought to impede the flow of magma to the surface.The subduction compels the formation of the Hellenic arc, which includes Santorini and other volcanic centres, such as Methana, Milos, and Kos.The inner coast around the caldera is a sheer precipice of more than 300 metres (980 ft) drop at its highest, and exhibits the various layers of solidified lava on top of each other, and the main towns perched on the crest.
The complex formed during the Miocene and was folded and metamorphosed during the Alpine orogeny around 60 million years ago.