Gravity anomaly map of the lower Vouga basin (Aveiro, North - Central Portugal)

Several studies have been carried out in the ‘Baixo Vouga’ area, near Aveiro, Central-North Portugal (Fig. 1), in order to investigate its geology and tectonics. However, so far it has not been presented an overall model for the behaviour of the bedrock (metamorphic and igneous) in the region. This work aims to contribute to the definition of the bedrock topography and deep geological structures in the ‘Baixo Vouga’ region. A gravity survey in an area of 560 km2 in the Estarreja, Murtosa, Aveiro, Ílhavo, Oliveira do Bairro, Albergaria-a-Velha, Vagos and Mira districts was done and a total of 653 gravity stations were measured over a non uniform grid.