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“GeoSUB – Underwater geology” – Ustica, 13-17 September 2016


            References

            ANTONIOLI F., V. LO PRESTI, M. ANZIDEI, G.. DEIANA, E. DE SABATA, L. FERRANTI, S. FURLANI, G.
            MASTRONUZZI , P. E. ORRU, R. PAGLIARULO, A. ROVERE, G. SANNINO, P. SANSÒ, G. SCICCHITANO,
            C.  R.  SPAMPINATO,  M.  VACCHI  ,  A.  VECCHIO  (2015).  Tidal  notches  in  Mediterranean  sea:  a
            comprehensive analysis. Quaternary Science review. Quaternary Science Reviews 119, 66-84.
            FURLANI S., CUCCHI F., FORTI F., ROSSI A. (2009). Comparison between coastal and inland Karst
            limestone lowering rates in the northeastern Adriatic Region (Italy and Croatia). Geomorphology,
            104, 73-81.





            FIRST RADIOCARBON DATA FROM A PHREATIC SPELEO SAMPLED 30 CM BELOW SEA
            LEVEL AT FAVIGNANA ISLAND (TRAPANI, ITALY)


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            1 Antonioli F.,  Busetti A.,  Furlani S.,  Verrubbi V.,  Quarta G.,  Calcagnile L.,  Donati S.
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            1 ENEA, Casaccia, Laboratory climate modelling and impact, Roma
            2 Department of Mathematics and Geosciences, University of Trieste, Italy
            3 Centre for Dating and Diagnostics (CEDAD), Department of Mathematics and Physics-University of Salento,
            Lecce, Italy
            4 AMP Egadi

               We sampled and analized a composite speleothem showing together continental, marine and phreatic
            facies (see Figure 1) in a little cave in the Favignana island. The speleothem show a portion emerged with a
            carbonatic karstic facies brown coloured, and a white carbonate facies that show phreatic genesis 10 cm thik
            at -30 cm. Between the two different facies we also noted and analized a marine overgrowth (serpulids). The
            island is tectonically stable (last interglacia fossil deposit between 5 and 10 metres.
               The analisis of carbonatic karst give an age of 19 ka, the marine overgrowth of 1,450 ka cal BP and the last
            phreatic layr presently submerged of 0.72 ka cal yr BP. E' questo un risultato molto interessante relativo al
            livello del mare degli ultimi 800 anni, dati del genere sono molto pochi nel Mediterraneo This is an interesting
            result concerning sea level chenge for the last 700 years, due to the fact that s.l. data are very scarce in the
            Mediterranean (Toker et al 2013, Pagliarulo et al 2013, Antonioli et al 2016).
               The relative sea level at Favignana 0.7 ka BP was at about -30 cm, this value is in agreement with sea level
            prediction (Lambeck et al 2011, about 5 centimetres over sea-level curve.






















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