The Portlandien soil
This land belongs to the upper Kimmeridgian. This soil is slightly calcareous, marly and contains no fossils. It produces wines with more fruit character, with little minerality. It is most often the Petit Chablis unlike other names located on Kimmeridgian soil type.
The Kimmeridgian soil
This soil belongs to the second stage of the Upper Jurassic stratigraphic. This name comes from the name of a village in England called Kimmeridge where the soil has the same features.
This soil has very compact layers of limestone and clay marl containing abundant fossils of marine organisms in the occurrence of tiny oysters (Exogyra virgula). These marine sediments brought by the sea there are 150 million of years give us the typicity of Chablis wines.
Located on limestone marl below Portlandian, Chablis appears to be the only vineyard concerned by this soil.