The fate of iron in waters from a coastal environment impacted by metallurgical industry in Northern Italy: hydrochemistry and Fe-isotopes. (Articolo in rivista)

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  • The fate of iron in waters from a coastal environment impacted by metallurgical industry in Northern Italy: hydrochemistry and Fe-isotopes. (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Alternative label
  • Castorina F. [1, 2], Petrini R. [3], Galic A. [4], Slejko F. [3], Aviani U. [3], Pezzetta E. [5], Cavazzini G. [6] (2013)
    The fate of iron in waters from a coastal environment impacted by metallurgical industry in Northern Italy: hydrochemistry and Fe-isotopes.
    in Applied geochemistry; Elsevier, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Castorina F. [1, 2], Petrini R. [3], Galic A. [4], Slejko F. [3], Aviani U. [3], Pezzetta E. [5], Cavazzini G. [6] (literal)
Pagina inizio
  • 222 (literal)
Pagina fine
  • 230 (literal)
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  • http://www.sciencedirect.com/science/journal/08832927 (literal)
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  • 34 (literal)
Rivista
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  • SI (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • [1] Dipartimento di Scienze della Terra, Università ''Sapienza'', Roma, Italy [2] IGAG-CNR, Sezione di Roma ''La Sapienza'', Roma, Italy [3] Dipartimento di Matematica e Geoscienze, Università di Trieste, Italy [4] Geosciences, Utrecht University, Utrecht, The Netherlands [5] ARPA-FVG, Sezione Laboratorio Unico, Udine, Italy [6] IGG-CNR, Padova, Italy (literal)
Titolo
  • The fate of iron in waters from a coastal environment impacted by metallurgical industry in Northern Italy: hydrochemistry and Fe-isotopes. (literal)
Abstract
  • The source and cycling of Fe in groundwaters from the phreatic aquifer which characterizes a site impacted by metallurgical activity in a coastal area of northern Italy (Adriatic Sea) have been investigated by Fe-isotope analyses, H-O-Sr stable-isotope systematics and major and trace element chemistry. Waters are characterized by circum-neutral to alkaline pH and dissolved O-2 zoning, and range from a low-salinity Ca-Mg-HCO3 type to a brackish Na-Cl type resulting from seawater intrusion. The O-H isotopic data indicate that the Ca-Mg-HCO3 waters originate from meteoric precipitation that infiltrated at elevated altitudes, and that a variable seawater fraction, in some cases exceeding 90%, characterizes the Na-Cl type waters. The Fe content ranges from 0.48 to 9.99 mg/L and from 2.50 to 43.8 mg/L in low-salinity and brackish waters, respectively. The delta Fe-56 value varies over the wide range from +0.87 parts per thousand to -5.29 parts per thousand in low-salinity waters and between +2.15 parts per thousand and -2.34 parts per thousand in brackish waters. The isotopically lighter compositions are interpreted as reflecting isotopic fractionation during repeated cycling of Fe precipitation. Positive delta Fe-56 values might indicate either a higher solubility of oxyhydroxides, which during diagenesis preferentially incorporated the isotopically heavier fraction of Fe, or the leaching of the foundry landfill disposal which characterizes the site. (literal)
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