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Risks Associated to Structural Stability of Tailing Dams in the Arieş Middle Basin

Author(s): ŞTEFĂNESCU Lucrina | Camelia COSTAN | Al. OZUNU

Journal: Proenvironment Promediu
ISSN 1844-6698

Volume: 3;
Issue: 6;
Start page: 414;
Date: 2010;
Original page

Keywords: risks | structural stability | tailings dams | Arieş middle basin

The mining activities developed in the Arieş middle basin affected this region from various points of view: environmental,economic and social. The activities associated to the mining industry, either the exploitation itself, or those associated to mineclosures, represent a significant risk source for the environment and for the local population. The gold – silver and copper miningexploitation has permanently changed the relief forms, having profound negative consequences on local and regional level. The Arieşmiddle basin partially overlaps the Golden Quadrilateral in the Apuseni Mountains, which resulted in the development of 11 tailingdams belonging to four mining exploitations. As to the structural stability of these mining waste deposits, ravines and rills can beobserved on slopes, manifesting a progressive trend. Therefore, the risks induced by extreme atmospheric phenomena or by theircombination can have significant consequences, triggering technological accidents. The paper also includes a matrix risk assessmentperformed on the eleven tailings dams included in the investigation area.
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