Read e-book online Active Volcanoes of the Southwest Indian Ocean: Piton de la PDF
By Patrick Bachelery, Jean-François Lenat, Andrea Di Muro, Laurent Michon
Piton de los angeles Fournaise and Karthala are either protect volcanoes within the southwest Indian Ocean. This e-book summarizes the paintings performed on those very energetic basaltic volcanoes. Piton de los angeles Fournaise has a protracted background of clinical learn and tracking, with many info amassed in the course of fresh eruptions. it's one among the main studied volcanoes on the planet. The paintings awarded during this monograph contains geological, geophysical, geochemical and petrological features, but additionally reports on actual geography, normal risks and the sociological and behavioural approaches.'
The Karthala volcano could be much less renowned, however it serves as an enticing comparability to Piton de los angeles Fournaise. even though located with regards to the volcanoes of Hawaii, it differs from them through its extra alkaline magmas and not more widespread job. It was once additionally monitored for greater than 25 years, generating notable eruptions in fresh years.
Read Online or Download Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala PDF
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Additional resources for Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala
1999), Gallart et al. (1999) show that there is virtually no, or very weak, lithospheric flexure beneath La Réunion, whereas a large body of underplating material has been demonstrated beneath the southwest part of the island (Fig. 1). g. Minshull and Charvis 2001; Watts 1994; Watts and ten Brink 1989) and suggests a dynamic equilibrium where positive buoyancy of the plume would contribute to the dynamic support of the load of La Réunion. This had been suggested by Bonneville et al. (1997) and Lénat et al.
Rev Geophys 41(4):3–1, 3–24. 1029/2002RG000117 Kopp H, Kopp C, Phipps M, Flueh J, Ernst R, Weinrebe W, Morgan WJ (2003) Fossil hot spot-ridge interaction in the Musicians Seamount Province: geophysical investigations of hot spot volcanism at volcanic elongated ridges. J Geophys Res 108(B3). 1029/2002JB002015 Lénat JF, Merle, Lespagnol L (2009) La Réunion: an example of channeled hot spot plume. J Volcanol Geoth Res 184:1–13. 2008. 001 Lowrie A, Smoot C, Batiza R (1986) Are oceanic fracture zones locked or strong and weak?
After a period of apparent quiescence, Piton des Neiges then erupted differentiated alkaline lavas (Differentiated Series) between 350 and 29 ka. The evolution of Piton des Neiges volcano over more than 2 Ma, involving volcanic and volcano-tectonic activity and high erosion rates, has resulted in a complex geology exposed in deep valleys and in three main depressions (Fig. 4): the Mafate, Salazie and Cilaos Cirques. To the east of Salazie, a fourth cirque, the Marsouins Cirque, has been partially ﬁlled by lava and pyroclastite flows (Rocher and Westercamp 1989) giving rise to the present Bébour-Bélouve Plain (Fig.
Active Volcanoes of the Southwest Indian Ocean: Piton de la Fournaise and Karthala by Patrick Bachelery, Jean-François Lenat, Andrea Di Muro, Laurent Michon