Le Petit Calan

The Petit Calan, like the Gros Calan, finds its origin from the Barremian. Its rocks formed with the deposition and compression of the remains of organisms living in a shallow sea about 160 million years ago. They gained altitude by constituting a rock ensemble, undergoing fractures and foldings of lesser amplitude. This elevation of the Alpilles chain is directly related to the rapprochement between the Eurasian and African tectonic plates.