Comportamiento geoambiental de pasivos mineros a través de análisis químico y mineralógico del área minera Nambija, provincia de Zamora Chinchipe - Ecuador

Abstract

Abstract: Nambija mines have been exploited in an anti-technical and disorderly manner, taking as much gold concentration of mineral veins and gold studs. This has generated wastes, such as unsuitable stacking of waste exploitation and sterile materials. The Mining waste dumps and tailings exposed to the weather are degraded by exogenous processes (physicals and chemicals) such as gravity, temperature, water, wind and man. The metals diluted in water can be transported gravimetrically and due to there is a high concentration become toxic and harmful to health. In this project was identified with petrographic incident light microscope (fragmented rock) and reflected light (polished sections), sulfides that produce more pollution to environment as is the case mainly of pyrite, chalcopyrite and lesser extent the galena. We also detail through maps (geochemical distribution's anomalies), the location and concentration of heavy metals contaminants (Cd, Pb, Cu, Fe, Hg and As) by atomic absorption spectrophotometer Perkin Elmer 400 AAnalist.