Active Volcanoes of the Southwest Indian Ocean: Piton de la by 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 energetic basaltic volcanoes. Piton de l. a. Fournaise has an extended historical past of clinical examine and tracking, with many facts gathered in the course of contemporary eruptions. it really is considered one of the main studied volcanoes on the earth. The paintings provided during this monograph comprises geological, geophysical, geochemical and petrological features, but additionally experiences on actual geography, traditional risks and the sociological and behavioural approaches.'

The Karthala volcano will be much less popular, however it serves as a fascinating comparability to Piton de los angeles Fournaise. even if located on the subject of the volcanoes of Hawaii, it differs from them through its extra alkaline magmas and no more widespread task. It was once additionally monitored for greater than 25 years, generating outstanding eruptions lately.

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

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2001; Oehler et al. 2008; Rançon et al. 1989; Smietana 2011). l, we can speculate that Les Alizés volcano could have emerged at about the same period as Piton des Neiges, around 2 Ma. If the “Roches Pintades Series” is associated with Les Alizés, the latter would have reached a stage of transition from a basaltic shield-building stage to a more differentiated stage between at least 535 and 400–450 ka. The evolution of Les Alizés volcano is still more speculative after this period. , the summit of the edifice could have reached at least 1500–2500 m in elevation if we compare to similar sites such as Piton des Neiges or Hawaii (Ryan 1987).

2008), before the recent data from FOREVER (Deplus et al. 2009) and ERODER (Savoye et al. 2008) cruises were available. Preliminary interpretations using the most recent data have been published by Le Friant et al. (2011), Lebas (2012). It is likely that the submarine geology will be significantly refined in the near future, although the major units defined by Oehler et al. (2008) will probably remain largely unchanged. The geological maps of Oehler et al. (2008), Lebas (2012) (for the eastern slope) show surface rocks resulting from both constructional and destruction processes.

1 La Réunion Edifice La Réunion edifice is almost centrally located between the transform faults that bound the oceanic compartment on which it lies (Lénat 2016, this volume Chap. 2). The island is elliptical in shape (50 × 70 km) with a NW–SE orientation, and rises to 3070 m above sea level. It is composed of two volcanoes, Piton des Neiges, occupying the NW two thirds of the island, and Piton de la Fournaise. The whole edifice appears as a flattened cone, 220–240 km in diameter and 7 km in height.

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