Journal
RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI
Volume 23, Issue 1, Pages 13-23Publisher
SPRINGER-VERLAG ITALIA SRL
DOI: 10.1007/s12210-011-0154-0
Keywords
Planktonic and benthonic foraminifera; Oxygen stable isotope stratigraphy; Last half millennium; Continental shelf; Tyrrhenian Sea
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Funding
- VULCOST project
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The high-resolution study of sediment core C90-1 m collected at the continental shelf of the Gulf of Salerno (southern Tyrrhenian Sea) provides an excellent opportunity to show paleoenvironmental changes during the last 500 years induced by natural variability and human impact. Based on Pb-210 and Cs-137 measurements, the sedimentation rate results 0.20 cm/year for the last 100 years. The high sampling resolution (1 cm sample spacing) of core C90-1 m, 105 cm long, provides a time resolution of approximately 5 years/cm. Quantitative changes in the planktonic and benthonic foraminiferal assemblages combined with delta O-18 (G.ruber) variations allow to identify regional climatic and oceanographic signals. A significant turnover between herbivorous and opportunistic species and carnivorous planktonic foraminifera after the Maunder event suggests changes in river runoff and/or an increase in coastal flooding events in the studied area. Variations in the microfauna since 1940 yAD document environmental changes induced by the construction of a dam in the Sele River.
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