http://www.cnr.it/ontology/cnr/individuo/prodotto/ID6424
Heavy metals in top core sediments from the southern Campania shelf (Italy): Hints to define large-scale geochemical backgrounds (Articolo in rivista)
- Type
- Label
- Heavy metals in top core sediments from the southern Campania shelf (Italy): Hints to define large-scale geochemical backgrounds (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1080/027575405000456716 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Sprovieri M.; Sammartino S.; Salvagio Manta D.; Marsella E.; Ferraro L. (literal)
- Pagina inizio
- Pagina fine
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- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto per lAmbiente Marino Costiero (IAMC), CNR, Calata Porta di Massa, Interno Porto di Napoli, 80100 Napoli, Italy
Istituto per lAmbiente Marino Costiero (IAMC), CNR, Torretta Granitola, Mazara del Vallo, Trapani (literal)
- Titolo
- Heavy metals in top core sediments from the southern Campania shelf (Italy): Hints to define large-scale geochemical backgrounds (literal)
- Abstract
- The results of a geochemical survey carried out on the southern Campania shelf (southern Italy) are
illustrated, offering a tempting opportunity to discuss the statement and definition of regional geochemical
backgrounds for selected heavy metals. A total of 104 top core sediments, collected on
average 1.5 km from one another and covering a shelf area of about 1300 km2, were analysed for
grain size, organic carbon content (OC), and heavy-metal (As, Al, Fe, Cd, V, Cr, Zn, Cu, Ni, Hg, and
Pb) concentrations. The characteristics of the area, scarcely influenced by industrial activities, and the
extensive data set, make this study suitable for revising the most appropriate multivariate and spatial
geostatistical methodologies for a reliable definition of large-scale marine sediments two-dimensional
geochemical backgrounds and discriminate different geological controls on trace-element distribution
patterns. Enrichment factors estimated with respect to both the average shale composition and the Q1
weighted average metal concentrations measured in inland soils rule out significant anthropogenic
inputs. A spatial-geostatistics approach (kriging of spatial component based on an accurate implementation
of variographic surveying) was applied, and this is proposed as an appropriate quantitative
methodology to define the geochemical backgrounds for the different heavy metals. Two nested spatial
structures were identified for some of the heavy metals, thus allowing clear identification of local and
regional geochemical controls related to the different spatial variability of grain size. (literal)
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