Costa, M. L., R. S. Angélica, and L. R. da Fonseca. 2011. “GEOCHEMICAL EXPLORATION FOR GOLD IN DEEP WEATHERED LATERITISED GOSSANS IN THE AMAZON REGION, BRAZIL: A CASE HISTORY OF IGARAPÉ BAHIA DEPOSIT”. Geochimica Brasiliensis 10 (1). https://geobrasiliensis.org.br/geobrasiliensis/article/view/95.