geo.wikisort.org - Mountains

Mont Gerbier de Jonc is a mountain of volcanic origin located in the Massif Central in France. It is made of a type of rock called phonolite. It rises to an altitude of 1,551 m (5,089 ft), and its base contains three springs that are the source of the Loire, France's longest river. It is the second most-visited site in the département of Ardèche, after the Ardèche Gorges.^{[citation needed]}

Gerbier de Jonc
Highest point
Elevation	1,551 m (5,089 ft)
Coordinates	44°50′40″N 4°13′12″E
Geography
Gerbier de Jonc Ardèche, France
Parent range	Massif Central
Geology
Mountain type	Lava dome Phonolite

Mont Gerbier de Jonc was formed 8 million years ago when a volcano erupted molten phonolite lava. The lava was too viscous to flow far and it cooled to form a lava dome of phonolite rock in the crater of the volcano. The lava dome has columnar jointing, which formed during cooling of the lava. The volcanic cone containing the lava dome was later eroded away, exposing the lava dome.[1]

References

На других языках

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[de] Mont Gerbier-de-Jonc

Der Mont Gerbier-de-Jonc ist eine der höchsten Erhebungen der Monts d’Ardèche im südöstlichen Zentralmassiv. Der Berg selbst ist ein markanter, erloschener Vulkankegel aus Phonolithgestein mit einer guten Aussicht über das Zentralmassiv.

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- [en] Mont Gerbier de Jonc

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[fr] Mont Gerbier-de-Jonc

Le mont Gerbier-de-Jonc, ou simplement le Gerbier de Jonc, est un sommet de France situé en Ardèche, dans le Massif central, sur la commune de Saint-Martial tandis que celle de Sainte-Eulalie s'étend à ses pieds au sud[1]. Dénommé suc dans la région, il est célèbre par sa forme particulière et son extraordinaire richesse naturelle et sauvage ; mais aussi parce qu’il accueille à son pied les trois sources de la Loire, le plus long fleuve de France.

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[it] Mont Gerbier de Jonc

Il monte Gerbier de Jonc è una cima francese sita nell'Ardèche, facente parte del Massiccio centrale. Si trova nel territorio del comune di Saint-Martial mentre ai suoi piedi si trova il comune di Sainte-Eulalie. Il monte Gerbier de Jonc è celebre per la sua forma particolare e la sua straordinaria ricchezza naturale e selvaggia, ma anche perché accoglie alla sua base le tre sorgenti della Loira, il fiume più lungo di Francia.

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