Naslov
Relative sea-level change in western Istria (Croatia) during the last millennium

Autori
Faivre, Sanja ; Fouache, Eric ; Ghilardi, Matthieu ; Antonioli, Fabrizio ; Furlani, Stefano ; Kovačić, Vladimir

Izvornik
Quaternary international (1040-6182) 232 (2011), 1/2; 132-143

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Holocene; sea-level changes; 14C dating; malacofaunal identification; grain-size analysis; Adriatic Sea

Sažetak
The paper deals with the relative sea level change which occurred along the western coast of the Istrian peninsula in Croatia. Sediments from two cores located in the bay of Santa Marina and Soline Bay have been analysed for microfaunal and sedimentological investigations. Chronostratigraphical evidence was obtained from 14C dating of lagoonal shells (gastropods). From the sedimentological and paleo-environmental analysis, 4300 years of continuous deposition in shallow marine environment was determined. At around 550 cal yr BP, marine sedimentation passed to continental. Consequently sedimentation rate of 0.7 mm/yr comes to 2.36 mm/yr after 550 cal yr BP. Those upper deposits of continental origin are today partly submerged. The obtained data were further compared with a geophysical model which allows the prediction of the local sea-level curve. As the results from the cores are largely below the curve, the tectonic subsidence of the area is confirmed. Radiocarbon analysis allowed the age of the shells to be related to the age of the submerged tidal notch that occurs almost continuously some hundreds of meters south-eastwards, from the Gulf of Trieste down to the Dalmatian coast.

Izvorni jezik
Engleski

Znanstvena područja
Geografija

Napomena
Tectonic Contribution to Relative Sea Level Change / Fabrizio Antonioli, Sanja Faivre, Luigi Ferranti and Carmelo Monaco (ur.).

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