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.

Le Cran d'Escalles et le Grand Blanc-Nez vus depuis la plage en face du Petit Blanc-Nez

The Notch of Escalles and the Big White-nose seen since the beach in front of the Small White-nose

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.

Les côtes anglaises vues depuis le bas de la falaise du Petit Blanc-Nez Le phare à droite semble être celui de South Foreland

The English coast seen for the bottom of the cliff of the Small White-nose (telephoto lens)
The lighthouse to the right seems to be the one of South Foreland

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.

An answer in Cap_blanc_nez

  1. Ping:Blanc_Nez ¦ Falaise of chalk

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