Fernando Araújo Abrunhosa

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5. Conclusions The radargrams identified a depression in Area 1 (Bragança), which appears to have been filled with material at some time in the past. A compacted layer was also detected near the surface, although no evidence of a water table was found at this site. In Area 2 (Tracuateua), the GPR prospection identified a horizontal reflector (6–6.5 m) corresponding to the water table, which was confirmed by a well drilled on the property.