The marine sedimentary record of natural and anthropogenic contribution from the Sulcis-Iglesiente mining district (Sardinia, Italy)
| Autor: | Antonella Ausili, Stefano Andreucci, Elena Romano, Chiara Maggi, Giovanni De Giudici, Luisa Bergamin, Giancarlo Pierfranceschi, Maria Celia Magno |
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| Rok vydání: | 2017 |
| Předmět: |
Geologic Sediments
010504 meteorology & atmospheric sciences Geochemistry Sediment Weathering 010501 environmental sciences Aquatic Science Oceanography 01 natural sciences Pollution Tailings Mining Natural (archaeology) Italy Mining engineering Metals Sedimentary rock Enrichment factor Geology Environmental Monitoring 0105 earth and related environmental sciences Environmental impact of mining |
| Zdroj: | Marine Pollution Bulletin. 122:331-343 |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2017.06.070 |
| Popis: | Intensive exploitation of base metal deposits in the Sulcis-Iglesiente district (Sardinia, Italy), lasted from the 1850s to the 1990s, determined a high environmental impact on the coastal area, but the effects on marine environment have never been investigated. A marine sediment core, dated with 14C, was characterized for grain size, chemical and mineralogical composition, in order to reconstruct the sedimentary history of the area and to assess the environmental impact of mining. The comparison of chemical and mineralogical characteristics of recent sediments with those of pre-industrial age allowed discriminating the real anthropogenic impact from the natural metal enrichment. The correspondence, in the upper core, of anthropogenic trace metal enrichment with the presence of mine waste minerals is attributed to the exploiting over industrial scale; the still high metal enrichment in sediment surface levels suggests a still existing impact due to mine dumps and tailings weathering. |
| Databáze: | OpenAIRE |
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