Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8863031 | Applied Geochemistry | 2018 | 41 Pages |
Abstract
Rio Irvi Zn load was extreme for a stream of this size and discharge. A comparison with two other mine-affected rivers in Sardinia indicated the loading in Rio Irvi was two to three orders of magnitude greater. This difference was attributed to different geochemical conditions, but also to a lack of a biogeochemical barrier like that seen to be acting along and below the riverbed in Rio San Giorgio. Several years of intense vegetation growth in the river bed of Rio San Giorgio created a biogeochemical barrier to metal loading, and the cumulative Zn load there was near 8â¯kg/day, despite being a drainage with a greater mass of mine wastes to contribute to the load.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Giovanni De Giudici, Daniela Medas, Rosa Cidu, Pierfranco Lattanzi, Francesca Podda, Franco Frau, Nicola Rigonat, Claudia Pusceddu, Stefania Da Pelo, Patrizia Onnis, Pier Andrea Marras, Richard B. Wanty, Briant Kimball,