Teófilo A. R. Chifunga e Irineu Figueiredo

Geophysical methods, particularlyelectroresistivity, are becoming a major tool in subsurface water exploration as their use diminishes costs by detecting precisely the exitence of water-prone structures and thus optimizing well location. This paper brings some technical and theoretical aspects of the electroresistivity method and details the procedures for the acquisition, processing and interpretation of data from crystalline basement aquifers. Results of a real case study are presented, from an area in the municipality of Sao José do Rio Pardo/SP.