Umberto Masi, Francesca Castorina


In the frame of a multidisciplinary project of research on the San Vitale Pinewood ecosystem, north of Ravenna, the Sr isotope study of a soil profile developed on an old coastal dune aiming at detecting the effect of salinization is presented. The Sr isotope ratios of the bulk soil samples decreased significantly from upper (0.717) to lower (0.712) horizons because of the abundant marine salts deposited by the brackish water present in the deep soil. While the main source of Sr in the upper horizons is the silicates, especially the feldspaths contained in the old dune sediments; in contrast, Sr in the lower horizons is significantly also of evaporitic origin (0.707-0.709). This latter is dominantly the strontium bio-available to the plants.


Sr isotopes; soils; salinization; San Vitale Pinewood

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ABERG G. (1995) The use of natural strontium isotopes as tracers in environmental studies. Water Air Soil Pollution79:309–322.

CAPO R.C., STEWART B.W., CHADWICK O.A. (1998) Strontium isotopes as tracers of ecosystem processes: theory and methods. Geoderma 82:197–225.

CASTORINA F., MASI U. (2007) Use of Sr isotopes to constrain Sr (and Ca) sources in a Mediterranean soil profile near Muravera (SE Sardinia). Acta Vulcanologica 19 (1-2):103-108.

CASTORINA F., MASI U. (2008) The Sr-isotope composition of soils: a case study from Muravera (SE Sardinia, Italy). Journal of Geochemical Exploration 96:86–93.

CONTICELLI S., D’ANTONIO M., PINARELLI L., CIVETTA, L. (2002) Source contamination and mantle heterogeneity in the genesis of Italian potassic and ultrapotassic volcanic rocks: Sr-Nd-Pb isotope data from Roman Province and Southern Tuscany. Mineralogy and Petrology 74:189-22.

HODELL D.A., MEAD G.A., MUELLER P.A. (1990) Variation in the strontium isotopic composition of seawater (8 Ma to present): implications for chemical weathering rates and dissolved fluxes to the oceans. Chemical Geology 80:291-307.

McARTHUR J.M., HOWARTH R.J., BAILEY T.R. (2001) Strontium isotope stratigraphy: Lowess Version 3: Best-fit to the marine Sr-isotope curve for 0 to 509 Ma and accompanying look-up table for deriving numerical age. Journal of Geology 109:155–170.

NÉGREL P., CASANOVA J., ARANYOSSY J.F. (2001) Strontium isotope systematics used to decipher the origin of groundwaters sampled from granitoids: the Vienne Case (France). Chemical Geology 177:287–308.

STEWART B.W., CAPO R.C., CHADWICK O.A. (1998) Quantitative strontium isotope models for weathering, pedogenesis and biogeochemical cycling. Geoderma 82:173–195.

DOI: 10.6092/issn.2281-4485/3818


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