Oceanic Hotspots Intraplate Submarine Magmatism and Tectonism [Hardcover]

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.- 1.3.1 Bathymetric Expression of the Superswell.- 1.3.2 Midplate Swells.- 1.3.3 Plate Boundary Features.- 1.3.4 Off-Ridge Features.- 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.- 2.2.1 Seismic Tremors.- 2.2.2 T Waves.- 2.3 Volcano-Seismic Activities on the Society Hotspot.- 2.3.1 Generalities and Chronological Events.- 2.3.2 The Over-All Seismicity of the Society Hotspot.- 2.3.3 Seismic Detection, Magnitude and Seismic Moment.- 2.3.4 Overview of the Swarms.- 2.3.5 Evolution of the Swarms and Nature of the Recorded Events.- 2.3.6 Frequency-Magnitude Relationship.- 2.3.7 Seismic and Magmatic Activity in the Society Hotspot Volcanoes.- 2.4 Volcano-Seismic Activity of the Austral Hotspot: Macdonald Seamount.- 2.4.1 Seismic Swarms.- 2.4.2 Bathymetric Surveys of the Macdonald Seamount.- 2.5 Summary and Conclusions.- 2.5.1 Society Hotspot.- 2.5.2 Austral Hotspot.- 2.5.3 General 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.- 3.2.1 Lithostatic Load.- 3.2.2 The Generalized Equation of Isostatic Load.- 3.3 Reference Model.- 3.3.1 Compensation Depth.- 3.3.2 Lithospheric Density.- 3.3.3 Location of the Reference Column.- 3.4 Lithospheric Density Structure of Hotspot Swells.- 3.4.1 Introduction.- 3.4.2 French Polynesia, South Pacific Super Swell.- 3.4.3 Hawaiian-Emperor Island Chain.- 3.4.4 Mascarene-R?union Hotspot Track.- 3.4.5 Ascension Island.- 3.4.6 The Great Meteor and Josephine Seamounts.- 3.4.7 Iceland.- 3.5 Subsidence of Hotspot StruclC'