1. Geological Survey of Brazil (CPRM), Belo Horizonte Regional Office, Geology and Mineral Resources Management, Belo Horizonte, Brazil
2. Departamento de Geofísica, Universidade de São Paulo (USP), Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG), São Paulo, Brasil
3. Hydrogeophysics Group (HGG), Department of Geosciences, Aarhus University (AU) Aarhus C, Denmark