A chronicle of metallic element contamination : sediment record in a mining-affected dam reservoir context
Chronique d’une contamination par des éléments métalliques : cas de sédiments de barrage
Résumé
Dams represent favorable contexts for sediments accumulation in large volumes. In the caseof inorganic contamination, Metallic Elements (ME) may represent a great environmentalissue, as they constitute potential ME sinks and sources. Sedimentary archive records thetemporal evolution of the contamination, sediments transfers and the sediments-MEassociation that result from different mechanisms (punctual or exceptional events, naturallyoccuring or resulting from exploitation operations).