Preface; Contents; Part IPiton de la Fournaise Volcano; 1 A Brief History of the Observation of the Central Area of Piton de la Fournaise; Abstract; 1.1 Introduction; 1.2 Early Observations at the Beginning of the Island's Colonization; 1.3 Visits and Descriptions by Inhabitants and Naturalists During the 19th Century; 1.4 Observations During the 20th Century; 1.5 Modern Observations: Piton de La Fournaise Volcanological Observatory; Acknowledgments; References; 2 Geodynamic Setting of La R00E9union; Abstract; 2.1 Regional Tectonic Setting; 2.2 La R00E9union and the Surrounding Lithosphere

2.2.1 Characteristics of the Oceanic Compartment of La R00E9union2.2.1.1 Bathymetry Anomaly; 2.2.1.2 Gravity and Magnetic Patterns; Gravity; Magnetics; 2.2.1.3 Seamounts and Sediments of the Oceanic Plate; References; 3 Construction of La R00E9union; Abstract; 3.1 La R00E9union Edifice; 3.2 Basement Geometry; 3.3 Infrastructure of the Submarine Flanks; 3.4 Internal Structures of the Volcanoes; 3.4.1 Piton Des Neiges; 3.4.2 Les Aliz00E9s Volcano; 3.4.3 Piton de La Fournaise; 3.5 Synthesis of the Construction of La R00E9union; Acknowledgements; References

4 Geology and Morphostructural Evolution of Piton de la FournaiseAbstract; 4.1 Introduction; 4.2 Morphology; 4.3 Volcano-Tectonic Structures; 4.3.1 Collapse Structures; 4.3.2 Rift Zones; 4.4 Geological Evolution; 4.4.1 The Ancient Piton de la Fournaise; 4.4.2 The Recent Shield of Piton de la Fournaise; 4.5 Synthesis; References; 5 Groundwater Resources on Active Basaltic Volcanoes: Conceptual Models from La R00E9union Island and Grande Comore; Abstract; 5.1 Introduction; 5.2 Climatology of La R00E9union: The Case of Piton de la Fournaise

5.3 Groundwater Bodies: Typology, Geological, Hydrodynamical and Geochemical Aspects5.3.1 Hydrogeological Analogy Between the Islands of Grande Comore and La R00E9union; 5.3.2 The Coastal Area; 5.3.3 The Inland Domain; 5.3.4 Hydrochemical Aspects; 5.3.5 Continuity Between Littoral Basal Groundwater and Deep Groundwater of High Elevation Zones; 5.4 Hydrogeological Modelling of Piton de la Fournaise; 5.5 Synthesis; References; 6 Erosion and Volcaniclastic Sedimentation at Piton de la Fournaise: From Source to Deep Marine Environment; Abstract; 6.1 Introduction

6.2 Geological and Climatic Settings6.2.1 Geological Settings of La R00E9union Island; 6.2.2 Climatic Settings of La R00E9union Island and Erosion Conditions; 6.3 The Submarine Flanks of La R00E9union Volcanic Edifice; 6.4 Onland Morphological Features of Piton de la Fournaise; 6.5 Morphology of the Submarine Flank of Piton de la Fournaise; 6.6 Onland Sediment Production and Transport from the High Relief to the Coastal Areas; 6.6.1 Lava Flows Fragmentation; 6.6.2 Landslides; 6.6.3 Quantitative Approach of Erosional Processes; 6.7 Sedimentary Deposits and Processes on the Submarine Flanks