Download Active Volcanoes of the Southwest Indian Ocean: Piton de la PDF

Piton de los angeles Fournaise and Karthala are either protect volcanoes within the southwest Indian Ocean. This booklet summarizes the paintings performed on those very lively basaltic volcanoes. Piton de los angeles Fournaise has an extended background of medical examine and tracking, with many information accumulated in the course of contemporary eruptions. it truly is one in all the main studied volcanoes on the planet. The paintings awarded during this monograph comprises geological, geophysical, geochemical and petrological points, but in addition reports on actual geography, common dangers and the sociological and behavioural approaches.'

The Karthala volcano could be much less popular, however it serves as an attractive comparability to Piton de l. a. Fournaise. even though located with regards to the volcanoes of Hawaii, it differs from them via its extra alkaline magmas and no more common job. It was once additionally monitored for greater than 25 years, generating impressive eruptions in recent times.

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Extra resources for Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala (Active Volcanoes of the World)

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Acknowledgments We thank Andrea Di Muro for his accurate suggestions that helped to improve this contribution. References Aubert de la Rüe E (1965) Le Piton de la Fournaise, volcan actif de l’île de la Réunion. Bulletin Volcanologique. Bull Volcanol 28(1):311–320 Bachèlery P (1981) Le Piton de la Fournaise (Ile de la Reunion). Etude volcanologique, structurale et petrologique. Piton de la Fournaise, Reunion; volcanologic, structural and petrographic study. Doctoral thesis, University of Clermont-Ferrand, Clermont-Ferrand, p 255 Bachèlery P, Saint-Ange F, Villeneuve N, Savoye B, Normand A, Le Drezen E, Barrère A, Quod J-P, Deplus C (2010) Huge lava flows into the sea and caldera collapse, April 2007, Piton de la Fournaise volcano.

Unlike for most oceanic volcanoes, the lithosphere beneath La Réunion exhibits, no, or very weak, flexure. A large body of underplated material has been identified beneath the southwestern part of the island. Two volcano edifices currently compose the island: Piton des Neiges to the NW and Piton de la Fournaise to the SE. The main internal feature of the Piton des Neiges volcano is a huge intrusive complex with a lateral extent coinciding at the surface with that of three depressions called Cirques.

4 a 2D magnetotelluric model crossing Piton des Neiges superimposed onto a 3D view of the topography. The red star locates the outcrop of gabbro (γ) in Salazie and Cilaos Cirques. The location of the deep exploration well is shown (SLZ1). The thick black contour represents the top of the Piton des Neiges hypovolcanic dense complex, as obtained through gravity modelling. The black crosses mark the soundings locations. Areas unconstrained by the soundings are whitened; b same as a along a northwest–southeast profile extending to Piton de la Fournaise.

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