Geology of France

From Wikipedia, the free encyclopedia
Geologic map of France.
Divisions in French Regional Geology.

The regional geology of France is commonly divided into the Paris Basin, the Armorican Massif, the Massif Central, the Aquitaine Basin, the Pyrenees, the Alps, the , the , the Massif des Vosges, the , the (Rhine graben) and Flanders Basin.[1]

Alpine orogen[]

The regions Alsace, Franche-Comté, Rhône-Alpes and Provence-Alpes-Côte d'Azur are part of the Western Alps.[2] Sediment from the Valais ocean crop out in the . The basement of the Briançonnais microcontinent crop out at Gran Paradiso, , , Vanoise and Ruitor. The Briançonnais cover sequences crop out in the . External massifs include the , Mont Blanc massif, and the . Sediments from the Piemont-Liguria Ocean crop out in and Ubaye.[3] The Jura mountains are part of the Helvetic nappes, that represent deposits from the European margin that were involved in the Alpine orogeny.[2]

Massif central[]

The Massif Central highlighted on an elevation map.

The geographic region of the Massif Central coincides with the geologic region with the same name. It is part of the Variscan orogenic cycle.[4] It was also a region of active volcanism during the Cenozoic.

References[]

  1. ^ Moores, Eldridge M., ed. (1997). Encyclopedia of European and Asian regional geology. London [u.a.]: Chapman & Hall. ISBN 978-0412740404.
  2. ^ a b Schmid, Stefan M.; Fügenschuh, Bernhard; Kissling, Eduard; Schuster, Ralf (30 April 2004). "Tectonic map and overall architecture of the Alpine orogen". Eclogae Geologicae Helvetiae. 97 (1): 93–117. doi:10.1007/s00015-004-1113-x.
  3. ^ Bousquet, Romain. "Tectonic framework of the Alps". Retrieved 26 February 2013.
  4. ^ Lardeaux, J.M; Ledru, P; Daniel, I; Duchene, S (28 February 2001). "The Variscan French Massif Central—a new addition to the ultra-high pressure metamorphic 'club': exhumation processes and geodynamic consequences" (PDF). Tectonophysics. 332 (1–2): 143–167. doi:10.1016/S0040-1951(00)00253-5. Retrieved 28 February 2013.

External links[]

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