By Patrick Bachelery, Jean-François Lenat, Andrea Di Muro, Laurent Michon
Piton de l. a. Fournaise and Karthala are either safeguard volcanoes within the southwest Indian Ocean. This e-book summarizes the paintings performed on those very lively basaltic volcanoes. Piton de los angeles Fournaise has a protracted heritage of clinical study and tracking, with many info amassed in the course of fresh eruptions. it truly is one in every of the main studied volcanoes on this planet. The paintings offered during this monograph comprises geological, geophysical, geochemical and petrological points, but in addition reviews on actual geography, usual dangers and the sociological and behavioural approaches.'
The Karthala volcano can be much less popular, however it serves as an attractive comparability to Piton de l. a. Fournaise. even supposing located with regards to the volcanoes of Hawaii, it differs from them through its extra alkaline magmas and not more widespread task. It was once additionally monitored for greater than 25 years, generating impressive eruptions in contemporary years.
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Additional resources for Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala
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. From Gailler and Lénat (2012) 38 erosion (however, the absence of centripetal dipping of the various formations around the complex precludes signiﬁcant subsidence of the dense body). The general shape of the dense complex model is that of a flattened dome culminating in the center of Piton des Neiges. Beneath the central area it rises to elevations signiﬁcantly higher than that of the bottom of the Cirques, and therefore well above the observed outcrops of gabbro.
J Volcano Geotherm Res 264:117–133 Michon L, Staudacher T, Ferrazzini V, Bachelery P, Marti J (2007) April 2007 collapse of Piton de la 21 Fournaise: a new example of caldera formation. Geophys Res Lett 34:L21301. 1029/ 2007GL031248 Michon L, Villeneuve N, Catry T, Merle O (2009) How summit calderas collapse on basaltic volcanoes: new insights from the April 2007 caldera collapse of Piton de la Fournaise volcano. J Volcano Geotherm Res, 184(1– 2): 138–151. 003 Montaggioni L, Nativel P, Billard G (1972) L’activite actuelle du Piton de la Fournaise (Ile de la Reunion, Ocean Indien).
5 Modern Observations: Piton de La Fournaise Volcanological Observatory Visiting the volcano remained difﬁcult for a long time because there was no road. It took at least three days from the nearest village, Bourg Murat. -F. Lénat Fig. 12 The summit in 1911 by Lacroix (1936, 1938). Top sketch map. Bottom picture taken from point a on the map) 1 A Brief History of the Observation of the Central Area … 19 Fig. 13 Oblique air photo from 1936 showing the collapsed summit. This is one from the ﬁrst set of aerial pictures of Piton de la Fournaise.