Author/Authors :
ahmedat, chaïma mohammed v university - institut scientifique, geophysics, natural patrimony and green chemistry research center (geopac) - laboratoire de géo-biodiversité et patrimoine naturel (geobio), Rabat, Morocco , el hassani, iz-eddine el amrani mohammed v university - institut scientifique; geophysics, natural patrimony and green, chemistry research center(geopac) - laboratoire de géo-biodiversité et patrimoine naturel (geobio), Rabat, Morocco , zahraoui, mohamed mohammed v university - institut scientifique, geophysics, natural patrimony and green, chemistry research center(geopac) - laboratoire de géo-biodiversité et patrimoine naturel (geobio), Rabat, Morocco , tahiri, abdelfatah mohammed v university - institut scientifique, geophysics, natural patrimony and green chemistry research center(geopac) - laboratoire de géo-biodiversité et patrimoine naturel (geobio), Raba, Morocco
Title Of Article :
Mineral potentialities and geo-accumulation effect of metallic trace elements from abandoned mines dumps. Case of Tourtit and Ichoumellal (Central Morocco) antimony sites
Abstract :
The mining activities of the old antimony sites of Tourtit and Ichoumellal (Central Morocco), generated huge amounts of waste (rocky waste and chemical treatment wastes). The old methods of treatment and processing of the deposit were little effective, because significant concentrations of metals (Sb, Pb, As, Zn, Cu, etc.) still remain in the wastes. The mineralogical and geochemical assessment conducted during this study shows that these mining wastes total to over a million tons with significant quantities of Sb (1208.5 t), Pb (373 t) and As (177.5 t). the estimation together of metals concentrations and the mineralogical study of the wastes confirm the presence of a metallic deposits that can be potentially exploited for Sb, As and Pb. The analysis of the surface sediments revealed also high pollution levels for Sb, Pb, As and Cd near to the abandoned sites. This pollution is directly linked to the stocks of the main metals in wastes, which were remobilized and transported by the hydrographic network. The results of this study encourages the stabilization or the sumption of the exploitation of these wastes, allowing at the same time to eradicate the source of heavy-metals pollution in the region.
NaturalLanguageKeyword :
Mineralogy , Geochemistry , Antimony , pollution , ETM , Tourtit , Ichoumellal , Central Morocco
JournalTitle :
bulletin de l’institut scientifique, section sciences de la terre
