Supergene gold enrichment in the Castromil-Serra da Quinta gold deposit, NW Portugal C. CRUZ1,2,*, F. NORONHA2...the University of Porto, Portugal Institute of Earth Sciences – Porto Pole, Portugal Medgold Resources...Resources Corp, Portugal Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia...metasediments occur in the northwestern part of Portugal. Most of these deposits were mined by the Romans...II AD) as open pits and surface galleries. The Castromil-Serra da Quinta gold deposit is an important example |