The Course White-nose
The Course White-nose establishes the most northern cliff of France. He peaks in 134 m of height and is situated in 10 km in him W of Calais. The cup of the chalky cliff extends over 6 km between the hamlet of Strouanne and the village of Sangatte (quaternary fossil cliff). The headland is subdivided into two sub-courses, the Small White-nose and the Big White-nose. These are separated by a depression (what the Normans call a "valleuse" and Screwed them a "notch") called the Notch of Escalles.
Exposed chalks belong to Cénomanien (thickness 75 m) and in a big part of Turonien. The latter is not accessible (except in case of mass of fallen rocks) for the bottom of the cliff. The facies is comparable to that met in Kent, between Folkstone and Dover. In good weather, we distinguish exactly the English cliffs and the recent training of the strait can be evoked.
The most detailed stratigraphical studies are the ones intrigues by F. Amédro and F. Robaszynski. The cup and the levels reserved marks here are extracted from their works (in particular F.A. *F.R. 2002).
Stratigraphy of the bottom of Cénomanien
Stratigraphy of the part averages of Cénomanien
Stratigraphy of the top of Cénomanien.