1. Institute of Geosciences and Exact Sciences, São Paulo State University – UNESP, Rio Claro, SP 13506-900, Brazil
2. Geological Survey of Brazil – CPRM/DISEGE, Brasília, DF 70040-094, Brazil
3. Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo – USP, São Paulo, SP 05508-090, Brazil
4. Institute of Geosciences and Exact Sciences, São Paulo State University – UNESP/UNESPetro, Rio Claro, SP 13506-900, Brazil