Puy de Montcineyre
| Puy de Montcineyre | ||
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 The Puy de Montcineyre |
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| height | 1360 m | |
| location | Puy-de-Dôme department , France | |
| Mountains | Chaîne des Puys , Massif Central | |
| Coordinates | 45 ° 27 '31 " N , 2 ° 54' 23" E | |
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| Type | Cinder cone | |
| Age of the rock | 7,636 ± 115 years BP | |
The Puy de Montcineyre is an extinct volcano ( cinder cone ) in the French department of Puy-de-Dôme ( Auvergne-Rhône-Alpes region ), which belongs to the Chaîne des Puys .
etymology
The French. The noun Mont means mountain. The Occitan or Auvergnatian word cineyre comes from the Latin masculine noun cinis , genitive cineris meaning ashes . The Puy de Montcineyre is therefore the ash mountain .
geography
The Puy de Montcineyre is located just under 3 kilometers northwest of Compains and is located at 1182 meters above sea level. The cinder cone reaches a final height of 1360 meters. Physiographically, the volcano is located in the transition area between the Monts Dore in the northwest and the Cézallier in the southeast. A good 20 kilometers separate it from the Chaîne des Puys in the north-northeast. Although it is geographically separated from the volcanic chain, it must still be included in it due to its eruption style, its rock composition and its Holocene age.
Immediately on the west and north-west side of the volcano is the Lac de Montcineyre , which was dammed up by the eruption. The volcanic cone is now made up of beech forests .
The maar of Lac Pavin has formed only 3 kilometers to the northwest . The Lac Chauvet , another Maar, located approximately five kilometers west.
geology
The local stratigraphy is relatively complex. In general, the cinder cone of the Puy de Montcineyre lies on the southwest flank of the Monts Dore, the sequence of which begins with basalts at the base, but then turns into igneous breccias, ember cloud sediments and finally into ash and pumice layers . This is followed by ejecta from the Estivadoux Maar , the lava flow from Puy de Montchal and ejecta from Lac Pavin. The hanging wall then forms the scoria and ashes of the Puy de Montcineyre as well as its lava flow flowing to the southeast and east, which fills the upper reaches of the Couze de Valbeleix .
Age
The Puy de Montcineyre was dated by means of 14 C to 6,812 ± 680 years BP . This corresponds to 7,686 ± 115 years BP or 5736 BC when calibrated. He is thus a very young volcanic phenomenon in the Châine des Puys. Only the Puy de la Vache , the Puy Lassoulas , the Cratère de Beaunit and the Lac Pavin are even younger.
Individual evidence
- ^ Gewelt, M. and Juvigné, E .: Téphrochronologie du Tardiglaciaire et de l'Holocène dans le Cantal, le Cézallier et les Monts Dore (Massif Central, France): résultats nouveaux et synthèse . In: Bulletin de l'Association française pour l'étude du quaternaire . tape 25 , 1988, pp. 25-34 .