Abstract
| Lingua originale | English |
|---|---|
| pagine (da-a) | 385-394 |
| Numero di pagine | 10 |
| Rivista | Italian Journal of Geosciences |
| Volume | 129 |
| Stato di pubblicazione | Published - 2010 |
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All Science Journal Classification (ASJC) codes
- Geology
- Earth and Planetary Sciences(all)
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Granulometry, mineralogy and trace elements of marine sedimentsfrom the Gulf of Milazzo (NE Sicily): evaluation of anthropogenic impact. / Di Leonardo, Rossella; Pepe, Fabrizio; Scopelliti, Giovanna; Ferruzza, Gaetano.
In: Italian Journal of Geosciences, Vol. 129, 2010, pag. 385-394.Risultato della ricerca: Article
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TY - JOUR
T1 - Granulometry, mineralogy and trace elements of marine sedimentsfrom the Gulf of Milazzo (NE Sicily): evaluation of anthropogenic impact
AU - Di Leonardo, Rossella
AU - Pepe, Fabrizio
AU - Scopelliti, Giovanna
AU - Ferruzza, Gaetano
PY - 2010
Y1 - 2010
N2 - Granulometry, mineralogy, and trace element concentrationsare determined in marine sediments from thirty-six sampling sites inthe littoral environment of the Gulf of Milazzo (NE Sicily). Sedimentsamples were collected in August 2008, along 18 seaward transects,at water depths of –10, –20 and –30 m, by using a Van Veen grab.Grain-size analysis shows predominance of sand (56%) and silt(35%) fractions with respect to clay (7%) and gravel (2%) fractions.Bulk mineralogical analysis documents the presence of quartz,micas, feldspars, calcite, and chlorite, which reflect erosionprocesses affecting the Kabilian-Calabrian Units. Concentrations ofmost trace elements in the deeper sediments were notably higherthan shallower ones, due to the gradual increase of the fine fraction(<63 mm). Concentrations of Cr, Ni, Pb and, at lesser extent, Zn andCu in the <63 mm fraction appear to be potentially hazardous,exceeding national and international regulatory guidelines, bothclose to the Milazzo industrial area and at Capo Rasocolmo. Traceelement mean values from the Gulf of Milazzo are comparable withthose measured in polluted sediments collected in the Gulf ofPalermo and Augusta Bay with a moderate enrichment in Zn. Differentsources of trace elements and different geochemical mechanismsare probably responsible of this distribution. Among these sourcesand mechanisms, local anthropogenic inputs, different contents oforganic matter, and surface water circulation may be invoked.
AB - Granulometry, mineralogy, and trace element concentrationsare determined in marine sediments from thirty-six sampling sites inthe littoral environment of the Gulf of Milazzo (NE Sicily). Sedimentsamples were collected in August 2008, along 18 seaward transects,at water depths of –10, –20 and –30 m, by using a Van Veen grab.Grain-size analysis shows predominance of sand (56%) and silt(35%) fractions with respect to clay (7%) and gravel (2%) fractions.Bulk mineralogical analysis documents the presence of quartz,micas, feldspars, calcite, and chlorite, which reflect erosionprocesses affecting the Kabilian-Calabrian Units. Concentrations ofmost trace elements in the deeper sediments were notably higherthan shallower ones, due to the gradual increase of the fine fraction(<63 mm). Concentrations of Cr, Ni, Pb and, at lesser extent, Zn andCu in the <63 mm fraction appear to be potentially hazardous,exceeding national and international regulatory guidelines, bothclose to the Milazzo industrial area and at Capo Rasocolmo. Traceelement mean values from the Gulf of Milazzo are comparable withthose measured in polluted sediments collected in the Gulf ofPalermo and Augusta Bay with a moderate enrichment in Zn. Differentsources of trace elements and different geochemical mechanismsare probably responsible of this distribution. Among these sourcesand mechanisms, local anthropogenic inputs, different contents oforganic matter, and surface water circulation may be invoked.
KW - Gulf of Milazzo
KW - Marine pollution.
KW - North Sicily offshore
KW - Trace elements
UR - http://hdl.handle.net/10447/54054
M3 - Article
VL - 129
SP - 385
EP - 394
JO - Italian Journal of Geosciences
JF - Italian Journal of Geosciences
SN - 2038-1719
ER -