Seismic applications of a Paris Basin shallow geology database

The Paris Basin is a Cratonic basin characterized by relatively thin sedimentary series which are either slightly folded or unfolded. The area with the greatest subsidence is located east of Paris. In this central part of the basin, the stratigraphic series lying over the Hercynian basement vary from Permian to Tertiary ages (Fig. 1). The main source rocks are represented by the Liassic marls (Hettangian/ Toarcian). The reservoir rocks are usually located within the Trias, Middle Jurassic, Lower Cretaceous and even the Lias as has been revealed by a recent discovery in the Hettangian (WeIl of L'Orme 1990).