The Aegean sea basin is fed at its northern periphery by the complex fluvial systems of the rivers Vardar/Axios, Strouma/Strymon, Mesta/Nestos and Maritsa/Evros. At some stages of their evolution, these rivers formed real fluviolacustrine systems, and their onset and evolution could throw light on the Late Alpine geodynamics and the mechanisms of the opening of the Aegean. The complex fluviolacustrine systems were set on in Middle Miocene time, and fully developed in Late Miocene, Pliocene and Quaternary times. Their onset and evolution are closely related to the complex rifting along the Vardar/Axios and Strouma/Strymon fault belts, and the motions along the North- Anatolian Fault Zone.
The present abstract has been published first in the Abstract CD-R Volume of the 17th Congress of the Carpathian-Balkan Geological Association in September 2002. However, the limited circulation of the volume restricted the possibility to reach a larger number of interested geologists. A full publication of the results could be achieved through a paper in Geologica Carpathica, and the duly submitted (January 2002) manuscript has been accepted for publication by the Editorial Board (letter of 27.06.2002) but under the condition to enrich the paper with more facts, and in the same time, to proceed with a considerable shortening. In these circumstances, the author prefers to publish the abstract in a slightly enlarged form (two additional figures) in the present special issue, and to proceed with writing a book dedicated to the onset and evolution of the Strouma/Strymon and Mesta/Nestos fluviolacustrine systems in Neogene and Quaternary times...