Het Continentaal Platform van de Noordzee gedurende het Kwartair

After a brief description of the present day North Sea shelf, the paper deals with the main processes of its genesis and evolution: continental river and glacier sediment supply, marine sediment reworking into deposits and shelf landforms, climatic changes with sea level variation and land ice movements, differential soil movement. It advances some evidences

The evolution of the coastal aquifer of Belgium

In the unconfined aquifer below the coastal area of Belgium salt water Occurs under a fresh-water layer at depths that vary from 2 to more than 25 m. Radiocarbon dating of groundwater samples set the seawater encroachment in the deep parts of the aquifer back at least in the Sub boreal period. A working hypothesis concerning the evolution of the aquifer is formulated