History
During the Triassic period, the French region of Provence subsided and was covered by the sea, leaving thick layers of various limestone deposits. Several million years later, with the arrival of the Jurassic period, the area was covered by a warm shallow sea, which allowed the growth of various Corals. The Cretaceous period saw what is now Basse Provence being raised and the sea reaching the current location of the Alps, which were themselves erected during the tertiary era. As a result of the large scale geological activity resulting from this, many of the Jurassic limestone deposits fractured, forming relief with valleys and other such features. Indeed, it is to this epoch that the origins of the Verdon Gorge can be traced. The dawn of the Quaternary period witnessed large scale glaciation, transforming water pockets and lakes into unstoppable rivers of ice, which remodeled the topography, scouring and striating the landscape. At the end of this activity, erosion by rivers continued, forming the Gorge as it is today. The Verdon’s river bed was scoured for a second time of the accumulated coral and limestone sediments, by a water delivery rate nearing 2000 to 3000 cubic metres per second.
Read more about this topic: Verdon Gorge
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