Subsurface Ramifications of the Paraiba River System: Similarities with the Deep Groundwater Flow Systems of the Amazon Region

The nature of groundwater flow systems in the Taubate basin and in the continental part of the Campos basin has been determined on the basis of analysis of geothermal data. The results obtained point to near vertical flow systems in the Taubate basin. The flow system in the Campos basin is dominantly lateral. The general conclusion compatible with such results is that large scale groundwater flow systems, similar to those found in the Amazon region, operate in sedimentary basins along the course of the Paraiba River.