About: Hellenic orogeny

The Hellenic orogeny is a collective noun referring to multiple mountain building events that shaped the topography of the southern margin of Eurasia into what is now Greece, the Aegean Sea and western Turkey, beginning in the Jurassic. Prior to then the supercontinent, Pangaea, had divided along a divergent boundary into two continents, Gondwana land and Laurasia, separated by a primordial ocean, Paleo-Tethys Ocean. As the two continents continued to break up, Gondwana, pushed by divergent boundaries developing elsewhere, began to drift to the north, closing the sea. As it went it split off a number of smaller land masses, terranes, which preceded it to the north. The Hellenic orogeny is the story of the collision first of these terranes and then of Gondwana, reduced to Africa, with Euras