Geology of Attica (Marathon, Salamis)

[hoplite14gr]

I havent read the book but about geological changes, please kindly note:
The ground of Attika and most of Greece for that matter is mostly argillic/boxite in composition.
The "soft" ground is sencitive to geological phenomena like earthquakes and theeffect of water.
The ancient rivers Ilissos and Kiffisos, oficially "dry" were stumbled upon underground(!!)
during the excavation for the subway construction in the 90s.
the latest excavations in Salamis that found the palace of Ajax dicovered that the coast line had been
"transformed" by the sea. Please check the Thermopylae thread to see the extend of how the sea and
the rivers cna change the appearence of a place.
Kind regards