Abstract
This research proposal developed under FAPESP/NERC/Project: Marine ferromanganese deposits - a major resource of E-tech elements (MarineE-tech) has the aim to address socio-economic issues of mining ferromanganese deposits located in the Brazilian outer continental shelf at 40°W and 30°S, in the Rio Grande Rise (RGR). Main objective is the sustainability of a mining venture of a deposit i…