The study area includes the Vitória-Trindade ridge off shore Vitória city in the Espírito Santo state. This ridge is<br>constituted by banks and seamounts extending for aproximately 1000 km in the east-west direction. The<br>geophysical data were included on a numerical model in order to estimate the lithospheric thickness (Te) in twodimensions.<br>The calculated model can be represented by a continuous thin elastic plate with an elastic thickness<br>varying from 10 to 30 km. The estimated ages for each seamount of the Vitória-Trindade ridge reveals a<br>progressive increase from the continental margin towards the deep ocean. These results suggest that the<br>seamounts of the Vitória-Trindade ridge was formed by magmatic reactivation due to the interaction of the<br>Trindade mantle plume with the structural fabric of the oceanic fracture zones in the area.


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