Oceanic Hotspots

References.- 1 Sea-Floor Topography and Morphology of the Superswell Region.- 1.1 Introduction.- 1.2 Data Sources and Methods.- 1.3 Sea-floor Morphology in French Polynesia.- 1.4 Conclusions.- Acknowledgements.- References.- 2 Seismicity of the Society and Austral Hotspots in the South Pacific: Seismic Detection, Monitoring and Interpretation of Underwater Volcanism.- 2.1 Introduction.- 2.2 Seismic Waves Used.- 2.3 Volcano-Seismic Activities on the Society Hotspot.- 2.4 Volcano-Seismic Activity of the Austral Hotspot: Macdonald Seamount.- 2.5 Summary and Conclusions.- Acknowledgements.- References.- 3 A Global Isostatic Load Model and its Application to Determine the Lithospheric Density Structure of Hotspot Swells.- 3.1 Introduction.- 3.2 Isostasy of the Lithospheric Plate.- 3.3 Reference Model.- 3.4 Lithospheric Density Structure of Hotspot Swells.- 3.5 Subsidence of Hotspot Structures.- 3.6 Conclusions.- Acknowledgements.- References.- 4 Origin of the 43 Ma Bend Along the Hawaiian-Emperor Seamount Chain.- 4.1 Introduction.- 4.2 The Emperor Seamount Chain Paradox.- 4.3 The Origin of the 43Ma Bend.- 4.4 Summary and Conclusion.- Acknowledgements.- References.- 5 South Pacific Intraplate Volcanism: Structure, Morphology and Style of Eruption.- 5.1 Introduction.- 5.2 Society Hotspot.- 5.3 Austral Hotspot.- 5.4 Pitcairn Hotspot.- 5.5 Hotspot Versus Non-Hotspot Volcanoes.- 5.6 Style of Eruption and Formation of Hotspot Edifices.- 5.7 Summary and Conclusions.- Acknowledgements.- References.- 6 Submarine Landslides in French Polynesia.- 6.1 Introduction.- 6.2 Geological Setting.- 6.3 Landslides of the Society Islands.- 6.4 Austral Island Landslides.- 6.5 Classification of the Society and Austral Landslides.- 6.6 Evolution of the Mass Wasting with the Age of the Edifices.- 6.7Conclusion.- Acknowledgements.- References.- 7 Mantle Plumes are NOT From Ancient Oceanic Crust.- 7.1 Introduction.- 7.2 Petrological Arguments.- 7.3 Geochemical Arguments.- 7.4 Mineral Physics Arguments.- 7.5 Summary.- Acknowledgements.- References.- 8 The Sources for Hotspot Volcanism in the South Pacific Ocean.- 8.1 Introduction.- 8.2 The Hotspot Chains of the South East Pacific.- 8.3 Discussion: Petrogenesis of South East Pacific Hotspots.- Acknowledgements.- References.- 9 Plume-Ridge Interactions: New Perspectives.- 9.1 Introduction.- 9.2 Concepts.- 9.3 Examples.- 9.4 Summary and Conclusion.- Acknowledgements.- References.- 10 Intraplate Gabbroic Rock Debris Ejected from the Magma Chamber of the Macdonald Seamount (Austral Hotspot): Comparison with Other Provinces.- 10.1 Introduction.- 10.2 The Macdonald Seamount.- 10.3 Petrology.- 10.4 Geochemistry.- 10.5 Discussion.- 10.6 Summary and Conclusions.- Acknowledgements.- References.- 11 The Foundation Chain: Inferring Hotspot-Plate Interaction from a Weak Seamount Trail.- 11.1 Introduction.- 11.2 Sample Preparation and Analytical Procedure.- 11.3 Results.- 11.4 Discussion.- 11.5 Conclusions.- Acknowledgements.- References.- 12 Hydrothermal Iron and Manganese Crusts from the Pitcairn Hotspot Region.- 12.1 Introduction.- 12.2 Geological Setting.- 12.3 Sample Description.- 12.4 Chemical Composition.- 12.5 Formation of Fe and Mn Crusts.- 12.6 Conclusions.- Acknowledgements.- References.- 13 Methane Venting into the Water Column Above the Pitcairn and the Society-Austral Seamounts, South Pacific.- 13.1 Introduction.- 13.2 Geological Setting.- 13.3 Methods.- 13.4 Results and Discussion.- 13.5 Conclusions.- Acknowledgements.- References.- 14 Petrology of Young Submarine Hotspot Lava: Composition and Classification.- 14.1 Introduction.- 14.2 Composition and Description of Oceanic Rocks.- 14.3 Relationship Between Intraplate-Hotspot and Spreading-Ridge Magmatism.- 14.4 Compositional Differences Among Hotspots.- 14.5 Summary and Conclusions.- Acknowledgements.- References.