Nappe De Provence

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Marcel Alexandre Bertrand (2 July 1847 – 13 February 1907) was a French geologist born in Paris. He was the son of mathematician Joseph Louis François Bertrand (1822–1900), and son-in-law to physicist Éleuthère Mascart (1837-1908). He studied at the École Polytechnique, and beginning in 1869 he attended the Ecole des Mines de Paris. From 1877 he carried out geological mapping studies of Provence, the Jura Mountains and the Alps. In 1886, he became an instructor at the École Nationale Supérieure des Mines, and in 1896 became a member of the Académie des sciences. Bertrand, a founder of modern tectonics, originated an orogenic "wave theory" of mountain-building and introduced the nappe hypothesis (nappe de charriage). His wave theory described a build-up of massive folds of earth taking place over successive geological eras, called the Caledonian, Hercynian and Alpine periods of orogeny. Bertrand later added a fourth event called the Huronian orogeny, which took place 2400 to 2100 million years ago, in Precambrian time. In 1890 he was named president of the Société géologique de France. The Concours de Géologie twice awarded him the Prix Vaillant (1886 and 1890); he also won the Prix Fontannes (of the Société géologique de France) in 1888 and the Prix Petit d'Ormoy in 1893.

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Article Title : Marcel Alexandre Bertrand
Article Snippet :of the Bernese Alps. La grande nappe de recouvrement de la Basse-Provence, 1899 – The large nappe layer of Lower Provence. Mémoire sur les refoulements
Article Title : Matterhorn
Article Snippet :Alpine orogeny) from the Dent Blanche nappe, lying over ophiolites and sedimentary rocks of the Penninic nappes. The mountain's current shape is the result
Article Title : Authon, Alpes-de-Haute-Provence
Article Snippet :pronunciation: [otɔ̃]; Occitan: Auton) is a commune in the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region of south-eastern France. Authon
Article Title : Digne-les-Bains
Article Snippet :the Mistralian norm), is the prefecture of the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region of Southeastern France. As of
Article Title : Digne Prealps
Article Snippet :(French: Préalpes de Digne) are a massif in the southern part of the French Prealps located in the department of Alpes-de-Haute-Provence. The massif extends
Article Title : Geology of New Caledonia
Article Snippet :alternate plate collisions and rifting. The mantle-derived Eocene Peridotite Nappe is the most significant and widespread unit (labelled as "Ophiolites" and
Article Title : Dandelin spheres
Article Snippet :Dandelin spheres touching the same nappe of the cone, while hyperbola has two Dandelin spheres touching opposite nappes. A parabola has just one Dandelin
Article Title : Geology of the Western Carpathians
Article Snippet :In addition to nappe outliers of the Choč nappe (Hronic) and part of the Krížna nappe (Fatric), there is also a large body of Muráň nappe (Silicic unit)
Article Title : Vercors massif
Article Snippet :start of the Miocene, the raising of the Alps involved the thrusting of a nappe to the west. Sedimentary rocks were raised 2,000 metres (6,600 ft) above
Article Title : Alps
Article Snippet :origin. The bottom nappe structure is of continental European origin, above which are stacked marine sediment nappes, topped off by nappes derived from the

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