Relict geomorphological and structural control on the coastal sediment partitioning, North of Bay of Biscay

From the Glénan Island to Guérande plateau in south Brittany (France, Bay of Biscay), based
on 10000 km of seismic lines, submerged rocky barriers/inherited structural elements were
interpreted as the primary controls on variance of coastal topography and incision of
palaeovalleys. Sediment infilling is regulated by valley morphology and fluctuation of energy
conditions since the last marine transgression associated with the opening of the sea which
in turn is a function of climate warming and sea level rising.