1. Postgraduate Program in Civil Engineering, Federal University of Bahia, Salvador 40170-115, BA, Brazil
2. Center for Exact and Technological Sciences, Federal University of Recôncavo da Bahia, Cruz das Almas 44380-000, BA, Brazil
3. Postgraduate Program in Civil and Environmental Engineering, State University of Feira de Santana, Feira de Santana 44036-900, BA, Brazil
4. Postgraduate Program in Civil Engineering, Federal University of Rio de Janeiro, Rio de Janeiro 21945-970, RJ, Brazil
5. Centre for Mineral Technology, Rio de Janeiro 21941-908, RJ, Brazil
6. Postgraduate Program in Geosciences, National Museum, Federal University of Rio de Janeiro, Rio de Janeiro 20940-040, RJ, Brazil