Trace Metals （Cu, Pb, Zn, Mn, Mo, As） Analysis as a Base for Environmental Studies in Argentina  

作　　者：Adolfo Antonio Gutierrez Ricardo Mon 

机构地区：[1]Faculty of Natural Sciences and Miguel Lillo Institute, National University of Tucuman, San Miguel de Tucum6n 4000, Argentina

出　　处：《Journal of Earth Science and Engineering》2014年第2期113-120,共8页地球科学与工程（英文版）

摘　　要：In Argentina, at Central Andes Eastside, Cumbres Calchaquies, Aconquija Range and Ambato Block constitute a mountain chain that erects about 5,000 masl. Its geological story reveals morphotectonic and magmatic processes are similar to the Pampean Ranges at which they belong to, giving origin to mineralized areas. Geochemical concentrations of trace metals （Cu, Pb, Zn, Mn, Mo, As） in stream sediments are related to the geology and mineral manifestations of the area. Geochemical high average concentration of Cu, Pb and Mo are observed in all ranges. It highlights the presence of As in Cumbres Calchaquies-Aconquija Range and Zn, Mn in the mountains of Aconquija Range-Ambato Block. It was determined that Cu-Zn-Mn complex is adsorbed or precipitated most frequently by Mn oxides. Complex Pb-Zn, Mn-As, Mo-As and Pb-Mo are absorbed by other agents （clay; oxides of Mn, Fe, AI; organic matter）.

关 键 词：GEOCHEMISTRY trace metals Andean Pampean Ranges environmental. 

分 类 号：O614.711[理学—无机化学] P736.41[理学—化学]