Figure 4. Modified geological map of Zakynthos Island after IGME (1980) and Accordi and Carbone (1992). Legend: 1. Cretaceous carbonates, 2. Eocene carbonates, 3. Oligocene marly carbonates, 4. Miocene clastics and carbonates, 5. Pliocene-Quaternary alluvial deposits, 6. Ionian evaporites and breccias, 7. Anticline, 8. Fault, 9. Main thrust.