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Geodynamic and Geological Context of La Réunion's Oceanic Volcanic System

Explore the geodynamic and geological context of La Réunion island through gravity and magnetism studies. Discover insights on the present morphology, submarine flanks, hypovolcanic complexes, and construction history. Synthesize data to reconstruct the volcanic edifice and coastal shelf features. This study includes exploration of old volcanic constructions and internal structures of Piton de la Fournaise volcano.

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Geodynamic and Geological Context of La Réunion's Oceanic Volcanic System

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  1. Geodynamic and Geological Context Gravity of La Réunion Magnetism of La Réunion Synthesis and Conclusions Methods and Data The Submarine Flanks Synthesis and Conclusions Present morphology of the oceanic volcanic system Hypovolcanic complexes and associated subsidence Pre-Brunhes constructions (< 0.78 Ma) Present constructions Morphology of the constructed edifice • Reconstruction of the constructed edifice morphology • Coastal shelf  hyaloclastites - pillow lavasaccumulation • Submarine flanks :  Bulges composed of debris avalanches deposits accumulation • Reconstruction of two huge areas of old volcanic constructions

  2. Geodynamic and Geological Context Gravity of La Réunion Magnetism of La Réunion Synthesis and Conclusions Methods and Data The Submarine Flanks Synthesis and Conclusions Piton de la Fournaise internal structure (Lénat, 2012)

  3. Pronot, 2007 Hirn et al., 1998

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