Limagne
Sign in to savethumb|200px|The village of Usson on the edge of the Limagne plain The Limagne (; ) is a large plain in the Auvergne region of France in the valley of the Allier river, on the edge of the Massif Central. It mainly lies within the départements of Puy-de-Dôme, Allier and Haute-Loire. The term is sometimes used to include this, and three other less extensive plains, that lie along the valley of the Allier, in which case the first is known as Grande Limagne to distinguish it from the others. The name is derived from the Latin Lacus Magnus, or large lake.
Article
4 sectionsContents
- Geology
- Economy
- Main sites of interest
- References
thumb|200px|The village of Usson on the edge of the Limagne plain The Limagne (; ) is a large plain in the Auvergne region of France in the valley of the Allier river, on the edge of the Massif Central. It mainly lies within the départements of Puy-de-Dôme, Allier and Haute-Loire. The term is sometimes used to include this, and three other less extensive plains, that lie along the valley of the Allier, in which case the first is known as Grande Limagne to distinguish it from the others. The name is derived from the Latin Lacus Magnus, or large lake.
==Geology== The Limagne plain is a graben, downthrown from the Massif Central by a series of normal faults that border the western edge of the plain. It contains about 2 km of sediments, and the amount of stretching of the crust is estimated as 1.2–1.3. The rifting started in the Late Eocene and the main phase of subsidence continued into the Late Oligocene. The Limagne Graben forms part of a system of linked rifts, including the Rhine Graben, known as the European Cenozoic Rift System, that formed in response to compressional deformation of the Alpine foreland.