The development of Acid Mine Drainage (AMD), as a result of the oxidative weathering of sulphides, and the release of Potentially Toxic Elements (PTE) in the environment are one of the main problem affecting the natural watercourses in mining areas (NORDSTROM, 2011). The studied area is within the Roşia Montană mine site, a hydrothermal gold deposit hosted in andesites and dacites of Neogene age, piercing the prevolcanic sedimentary basement as breccia pipes (WALLIER et al., 2006). In this study a mineralogical and geochemical characterization of the ochreous precipitates and coupled waters occurring in the Roşia River was carried out in order to evaluate both the mineralogical variations and the PTE partitioning between contaminated waters and secondary minerals.
Environmental impact of acid mine drainage on the Roşia River (Roşia Montană mining area, Romania): a mineralogical and geochemical approach / E. Azzali, P. Marescotti, C. Carbone, E. Dinelli, S. Porro, L. De Capitani, D. Servida. - In: ACTA MINERALOGICA-PETROGRAPHICA. - ISSN 0365-8066. - 7:(2012), pp. 8-8. (Intervento presentato al convegno JOINT MSCC+CEMC 5th Mineral Sciences in the Carpathians Conference 3rd Central-European Mineralogical Conference tenutosi a Miskolc, Hungary nel 2012).
Environmental impact of acid mine drainage on the Roşia River (Roşia Montană mining area, Romania): a mineralogical and geochemical approach
S. Porro;L. De CapitaniPenultimo
;D. ServidaUltimo
2012
Abstract
The development of Acid Mine Drainage (AMD), as a result of the oxidative weathering of sulphides, and the release of Potentially Toxic Elements (PTE) in the environment are one of the main problem affecting the natural watercourses in mining areas (NORDSTROM, 2011). The studied area is within the Roşia Montană mine site, a hydrothermal gold deposit hosted in andesites and dacites of Neogene age, piercing the prevolcanic sedimentary basement as breccia pipes (WALLIER et al., 2006). In this study a mineralogical and geochemical characterization of the ochreous precipitates and coupled waters occurring in the Roşia River was carried out in order to evaluate both the mineralogical variations and the PTE partitioning between contaminated waters and secondary minerals.
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