Argiles d'Octeville | |
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Stratigraphic range: | |
![]() Argiles d'Octeville exposed near the base of cliffs near Octeville-sur-Mer, with Chalk in the upper exposure | |
Type | Geological formation |
Sub-units | Argiles du Croquet inférieures, Argiles du Croquet supérieures, Argiles d'Ecqueville inférieures, Argiles d'Ecqueville médianes, Argiles d'Ecqueville supérieures |
Underlies | Unconformity with Aptian sands |
Overlies | Marnes de Bleville |
Thickness | 34 metres |
Lithology | |
Primary | Claystone |
Other | Limestone |
Location | |
Region | Normandy |
Country | ![]() |
Type section | |
Named for | Octeville-sur-Mer |
The Argiles d'Octeville (meaning Octeville Clay) is a geological formation in Normandy, France. It dates back to the Kimmeridgian stage of the Late Jurassic.[1] It is equivalent to the Kimmeridge Clay in England[2] and predominantly consists of claystone, with some limestone.[3] It is well exposed in cliff section at Cap de la Hève