Oyarzún Muñoz, Roberto Mineral deposits and Cu-Zn-As dispersion-contamination in stream sediments from the semiarid Coquimbo region, Chile - Berlin Springer-Verlag October 2007 - pp. 283-294 ilus. ISSN: 0943-0105 Subjects--Topical Terms: ARSENICOCOBRE PORFIRITICOCONTAMINACION AMBIENTALGESTION AMBIENTALMETALES PESADOSRELAVESSEDIMENTOS FLUVIALESSUELOSYACIMIENTOS MINERALESZINC Subjects--Geographic Terms: CHILECOQUIMBO Subjects--Index Terms: EL INDIO, YAC. LOS PELAMBRES, YAC.