Comment on «Relative sea level change in western Istria (Croatia) during the last millennium» by Sanja Faivre, Eric Fouache, Matthieu Ghilardi, Fabrizio Antonioli, Stefano Furlani and Vladimir Kovacic. Quaternary International, 232 (2012)

摘要

The paper Faivre et al. (2011) presents an interpretation of results deduced from two coastal cores that are trying to date the period of formation of a slightly submerged tidal notch often reported from the coasts of Istria. The development of a tidal notch in carbonate coasts is usually made possible by intertidal bioerosion processes during periods of relative sea-level stability (Pirazzoli, 1986). The inward depth of the tidal notch profile, that in Istria is often of about half a meter, may be used for a rough estimation of the duration of the period of relative sea-level stability, with assumptions on the bioerosion rates, that in the Mediterranean have been reported to vary generally between about 0.2 and 1.0 mm/y (Evelpidou et al., 2012). The profile of the Istrian tidal notch shows a well preserved roof, evidence that the notch was submerged by a rapid subsidence, probably coseismic (Evelpidou et al., 2011a, 2011b).