Original paper

The sea-level instability: a danger for man, all along the coastal plains of the world. The high and low sea-levels, since 10,000 years: an example from the French Atlantic coast

Ters, Mireille J.


Far from being linear, the Holocene transgression occurred through a succession of advances and retreats. From 8,200 years to the present day, one can count 7 main advances and 6 retreats. The retreats may have been so deep as 5 to 10 meters, except after 2,000 years B. P., where the amplitude of oscillations seem not more than some tens of cm. The ups and downs of the sea have been very rapid. A submergence as slight as 5 m would be disastrous for Humanity, in low plains of over populated areas.