The superficial formations and Mesozoic formations discharge large volumes of groundwater to the sea.
The Zanclodonmergel is a Mesozoic geologic formation.
The Argiles de l'Irhazer is a Mesozoic geologic formation.
The Bahia Series is a Mesozoic geologic formation.
The Calcaire de Valognes is a Mesozoic geologic formation.
The Sables de Breze is a Mesozoic geologic formation.
The Camadas de Montejunto is a Mesozoic geologic formation.
The Craie tufau is a Mesozoic geologic formation.
The Mifune Group is a Mesozoic geologic formation.
The Conglomerados de Caranguejeira is a Mesozoic geologic formation.