Naslov
Submerged karst landscapes of the Eastern Adriatic

Autori
Miko, Slobodan ; Ilijanić, Nikolina ; Hasan, Ozren ; Razum, Ivan ; Durn, Tatjana ; Brunović, Dea ; Papatheodorou, George ; Bakrač, Koraljaka ; Hajek Tadesse, Valentina ; Šparica Miko, Martina ; Crmarić, Ranko ;

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
5th Regional Scientific Meeting on Quaternary Geology Dedicated to Geohazards and Final conference of the LoLADRIA project “Submerged Pleistocene landscapes of the Adriatic Sea / Marjanac, Lj. - Zagreb : Hrvatska akademija znanosti i umjetnosti (HAZU), 2017, 53-54

Skup
5th Regional Scientific Meeting on Quaternary Geology Dedicated to Geohazards and Final conference of the LoLADRIA project “Submerged Pleistocene landscapes of the Adriatic Sea”

Mjesto i datum
Starigrad, Hrvatska, 09.11.2017. - 10.11.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Podatak o recenziji nije dostupan

Ključne riječi
Holocene, sea level rise, submerged landscapes, karst

Sažetak
The Croatian coastal region is a part of Maritime Dinaric Alps which coincides with the Adriatic Carbonate Platform (AdCP). Some of the coastal karst depressions/basins (Dalmatian coast) developed into larger lakes (Fig.1.). Sediment core records show a tight correlation between sea level rise and lake formation during early Holocene. Terrestrial sequences in the Croatian coastal karst regions are often incomplete due to erosion or nondeposition. Therefore, accumulation of lake and marine sediments offer complete and well-dated archives spanning throughout most of the Holocene. Since a part of the karstified AdCP is drowned and its palaeo-dolines, depressions of variable size, as indicated by seismic data, contain up to 400 m of well stratified sediments (Kvarnerić bay, N. Adriatic) allowing insight to earlier periods of the Quaternary. Generally larger karst depressions lie between the islands at present day water depths from - 40 m to -90 m. These karst basins contain archives of climate change and have experienced repeated relative sea-level cycles during the Quaternary. Coring and geophysical data of a 40m thick sediment sequence indicate at least two glacial (lake sediments) and three interglacial (marine) cycles are be present in Lošinjski kanal due to submerged sills at -50 m. Most of the present day lakes along eastern Adriatic coast formed during the early Holocene (Bokanjačko blato, Vransko jezero near Biograd, Veliko jezero- Mljet). Vransko jezero on the Island of Cres survived from the Pleistocene as probably did lake Crniševo (Baćina lakes). The LGM lakes of Lošinjski kanal and Valun bay were flooded at onset of the Holocene, while the Pleistocene lake in Pirovac bay was flooded by the sea 8 ky cal BP and Veliko jezero on Mljet Island at 3 ky cal BP.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA