By Patrick Bachelery, Jean-François Lenat, Andrea Di Muro, Laurent Michon
Piton de los angeles Fournaise and Karthala are either defend volcanoes within the southwest Indian Ocean. This book summarizes the paintings performed on those very energetic basaltic volcanoes. Piton de l. a. Fournaise has a protracted background of clinical learn and tracking, with many facts gathered in the course of fresh eruptions. it really is one of the main studied volcanoes on this planet. The paintings awarded during this monograph comprises geological, geophysical, geochemical and petrological facets, but in addition reports on actual geography, traditional risks and the sociological and behavioural approaches.'
The Karthala volcano will be much less renowned, however it serves as an attractive comparability to Piton de los angeles Fournaise. even though positioned with regards to the volcanoes of Hawaii, it differs from them by means of its extra alkaline magmas and not more common task. It used to be additionally monitored for greater than 25 years, generating amazing eruptions in fresh years.
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Additional info for Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala
Bachèlery et al. -F. Lénat Fig. 1 Geodynamic setting of the Comoros and La Réunion. The magnetic chrons are taken from Müller et al. (1997) 1987; Smith and Sandwell 1997). This ﬁrst rift became inactive at about 120 Ma (magnetic chron M0; Fig. 1). It opened the Mozambic Channel in which the magmatism of the Comoros archipelago would develop later (Michon 2016, Chap. 21). Around 83 Ma (magnetic chron 34), the Mascarene Basin (Fig. 1) opened, marking the separation of Madagascar and India (Bernard and Munschy 2000; Dyment 1991a).
Lénat Fig. 3 3-D morphology of the constructed volcanic ediﬁce integrating the on-land part and the submarine parts inferred from magnetic interpretation (Gailler and Lénat 2010). The present-day shoreline and the present-day −4000 m contours are shown with black lines. Coordinates in km, WGS84 UTM 40S. From Gailler and Lénat (2010) The morphology of the submarine volcanic constructions of La Réunion has been recreated by Gailler and Lénat (2010) on the basis of the magnetic and gravity analyses and models (Fig.
1999, 2009; Gallart et al. 1999) that no flexure and corresponding sediment ﬁlling is observed beneath and around La Réunion. 2 Geodynamic Setting of La Réunion Magnetics In the La Réunion compartment, the authors (Bernard and Munschy 2000; Dyment 1991a; Fretzdorff et al. 1998) were confronted with difﬁculties in trying to establish the location and identiﬁcation of the magnetic chrons, partly because of inadequate data coverage, but above all because of the complexity of the anomaly pattern. Recently, Bissessur (2011) has used newly acquired data from the FOREVER and ERODER 1 and 2 cruises (Deplus et al.