Journal article

Crustal structure of the Azores Archipelago from Rayleigh wave ellipticity data

AMG Ferreira, A Marignier, J Attanayake, M Frietsch, A Berbellini

Geophysical Journal International | Oxford University Press (OUP) | Published : 2020


Determining the crustal structure of ocean island volcanoes is important to understand the formation and tectonic evolution of the oceanic lithosphere and tectonic swells in marine settings, and to assess seismic hazard in the islands. The Azores Archipelago is located near a triple junction system and is possibly under the influence of a mantle plume, being at the locus of a wide range of geodynamic processes. However, its crustal structure is still poorly constrained and debated due to the limited seismic coverage of the region and the peculiar linear geometry of the islands. To address these limitations, in this study we invert teleseismic Rayleigh wave ellipticity measurements for 1-D sh..

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