Granulometry, mineralogy and trace elements of marine sedimentsfrom the Gulf of Milazzo (NE Sicily): evaluation of anthropogenic impact

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Abstract

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.
Lingua originaleEnglish
pagine (da-a)385-394
Numero di pagine10
RivistaItalian Journal of Geosciences
Volume129
Stato di pubblicazionePublished - 2010

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granulometry
mineralogy
trace element
littoral environment
Calabrian
sediment
marine sediment
chlorite
gravel
silt
water depth
calcite
grain size
transect
quartz
surface water
clay
sand
sampling
gulf

All Science Journal Classification (ASJC) codes

  • Geology
  • Earth and Planetary Sciences(all)

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@article{762a71cc83e04c1b90e0b73e87748503,
title = "Granulometry, mineralogy and trace elements of marine sedimentsfrom the Gulf of Milazzo (NE Sicily): evaluation of anthropogenic impact",
abstract = "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.",
keywords = "Gulf of Milazzo, Marine pollution., North Sicily offshore, Trace elements",
author = "{Di Leonardo}, Rossella and Fabrizio Pepe and Giovanna Scopelliti and Gaetano Ferruzza",
year = "2010",
language = "English",
volume = "129",
pages = "385--394",
journal = "Italian Journal of Geosciences",
issn = "2038-1719",
publisher = "Societa Geologica Italiana",

}

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 -