Segura, R. Distribution of copper, zinc, lead and cadmium concentrations in stream sediments from the Mapocho river in Santiago, Chile - Amsterdam Elsevier Science October-December 2006 - pp. 71-80 ilus. Subjects--Topical Terms: CADMIOCOBREELEMENTOS TRAZAEXTRACCION SECUENCIALGEOQUÍMICAMOVILIZACION GEOQUIMICAPLOMOSEDIMENTOS FLUVIALESTOXICIDADZINC Subjects--Geographic Terms: CHILEMAPOCHO, RIOSANTIAGO