Santorini olive carbon dating eruption
This allows the formation of large magma chambers, in which the magma can evolve to more silicic compositions.
Once this happens, a large explosive eruption destroys the cone.
The ground then slopes outwards and downwards towards the outer perimeter, and the outer beaches are smooth and shallow.
The present municipality of Thera (officially: "Thira", Greek: ) of Therasia and Oia.
The total land area is 90.623 km The island was the site of one of the largest volcanic eruptions in recorded history: the Minoan eruption (sometimes called the Thera eruption), which occurred about 3,600 years ago at the height of the Minoan civilization.
The eruption left a large caldera surrounded by volcanic ash deposits hundreds of metres deep.
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.