Le Maar de Borée-Echamps

The vaporisation of the water in the confined space of the feeder chimney causes an overpressure and an explosion that pulverises the rocks in the conduit and the juvenile magma (fresh magma in the process of rising). The more or less coarse debris is violently thrown outwards where it settles to form a ring of tuffs. The maar was probably formed very recently (a few hundred thousand years at most), which links it to the volcanism of the Bas Vivarais, like the maar at Saint Martial.
The overflow of the lava lake from Echamps fed a flow of which a few shreds can be found in the Azette valley, at Bois Lantal, Chanéac....
After a calm phase, the activity ended with a brief strombolian episode (alternating projections and flows) that produced several small cones around the maar (Rastillas and the cone supported by the Pialox phonolite, which emitted a small flow towards the Gazeille).
Explosive materials: granitic rocks, prodotites, ashes, granules, magma blocks, small cauliflower bombs, slag, pozzolan, etc.

All year round.

Free access.

Ça peut vous intéresser

Le Maar de Borée-Echamps

Borée

Group accommodation Genestou

Borée

Dolmen des Beaumes

Borée

Le Mont Mézenc

Borée

Le Gouléïou

Borée

Le hêtre de Borée

Borée

Mézenc Marmots

Borée

Saint Martial Lake

Saint-Martial

Producteurs de Violine de Borée

Borée

Gîte Le Hameau gourmand

Saint-Martial

Suc de Touron

Borée

Itinéraire de randonnée “le cirque des Boutières – Mont Mézenc” – Borée

Borée

À proximité

Leisure

Aire de Pique-nique

Saint-Martial

Furnished accommodation and Gîtes

Gîte Ferme troglodyte dans un écrin de nature

Borée

Group gîte

Gîte d’étape communal

La Rochette

Furnished accommodation and Gîtes

Chalet Mme Combette Magalie 2

Saint-Martial

Bed & breakfast

Chambres d’hôtes La Ferme de Médille

La Rochette

Furnished accommodation and Gîtes

Gîte Le Hameau gourmand

Saint-Martial

Furnished accommodation and Gîtes

Studio des deux eaux

Saint-Martial

Historic site and monument

La chapelle de Saint Julien de Soutron

Arcens

Historic site and monument

Dolmen des Beaumes

Borée

Furnished accommodation and Gîtes

Gîte des deux eaux

Saint-Martial

Bed & breakfast

Chambres d’hôtes Auberge du Mézenc

Borée

Furnished accommodation and Gîtes

Gîtes Hameau le Rouvillier

Saint-Martial