The evolution of the Aegeis during the Late Cenozoic

pp. 3-16
Uniuersity of Athens, 15784 Athens

The Aegeis Region is marked, from a geotectonic viewpoint, with the collision between the African Plate and the Eurasian Plate. The resulting tectogeneses formed the Hellenides and the Aegean arc. The stratigraphic data for the last 23 Ma (the Late Cenozoic) are shown, together with the paleogeographic events, in five sketches: i) Aquitanian; ii) Lljte Burdigalian - Serravalian; iii) Tortonian – Messinian; iv) Pliocene; v) Pleistocene. The·Pleistocene development is of particular interest. The paleogeographic picture at that time did not differ considerably from the present one. Peloponessus was separated from Cythera by a narrow channel which permitted the passage of different mammals.
   Creta was a part of the continent during the Late Miocene when the break up of the whole Aegeis began. During the Pliocene, Creta represented an assemblage of small islands, and took its present shape during the Pleistocene when about 12000 years ago a rich endemic fauna was formed. In the same time, Karpathos and Kasos formed a single island (separated from Creta and Rhodos), Rhodos, Kos, Kalymnos and Chios were joined to Asia Minor, and the Cycladic Islands were brought together into two or three big islands.