La Grille

La Grille shield volcano at the northern end of Grand Comore Island (also known as Ngazidja) lacks a summit caldera like its larger and more well-known neighbor to the south, Karthala volcano. The basaltic La Grille volcano also contrasts with Karthala in its abundance of pyroclastic cones up to 800 m in height. The cones were erupted along fissures paralleling the summit ridge, which has an irregular profile and is elongated in a N-S direction, and from radial fissures that reach as far as the coast. Recent lava flows, some perhaps as young as a few hundred years, have reached the sea from fissures on the lower western, northern, and eastern flanks.

La Grille is a volcano in the Comoros is located in the Comoros archipelago on the island of Grande Comore.

Summary

1 Geography

2 History

3 Appendices

3.1 External Links

3.2 References

Geography

The Grille is located on the island of Grande Comore , an island in the Comoros in the Comoros archipelago bounded by the Mozambique Channel in the Ocean Indian 1. Occupying the northern island of Grande Comore, is surrounded on the south by the Karthala , another volcano rising to 2361 meters 1,2. The road going around the island of Grande Comore via the coast through the sides east, north and west of Grid and will connect the airport Prince Said Ibrahim to the west, many villages near the coast and on the volcano where there are pylons.

The mountain range, elongated in a north-south, consists of a stratovolcano cones covered slag height of 800 meters on average, giving the volcano a maximum altitude of 1087 meters. Unlike its neighbor Karthala, La Grille does not have caldera. Different eruptive vents are organized along the fissures that run the volcano from north to south, parallel to the ridge of the mountain, and other cracks along the coast winner. Of these eruptive vents escaped from lava basalt which sometimes reaches the sea on the east side, north and west of the volcano and some of which are still visible as few recolonized by tropical vegetation on the island.

History

Although the exact date of the last eruption of The CA is unknown, it seems that the volcano is erupting there are only a few hundred years because of some lava flows covering its sides and still not recolonized by vegetation1. Schedules [change]

External Links

• Global Volcanism Program - La Grille

Références

Catégorie:Volcan bouclier Catégorie:Stratovolcan Catégorie:Grande Comore