Hasan, Ozren
[Author];
Miko, Slobodan
[Author];
Brunovic, Dea
[Author];
Papatheodorou, George
[Author];
Christodolou, Dimitris
[Author];
Ilijanic, Nikolina
[Author];
Geraga, Maria
[Author]
Geomorphology of Canyon Outlets in Zrmanja River Estuary and Its Effect on the Holocene Flooding of Semi-enclosed Basins (the Novigrad and Karin Seas, Eastern Adriatic)
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Media type:
E-Article
Title:
Geomorphology of Canyon Outlets in Zrmanja River Estuary and Its Effect on the Holocene Flooding of Semi-enclosed Basins (the Novigrad and Karin Seas, Eastern Adriatic)
Contributor:
Hasan, Ozren
[Author];
Miko, Slobodan
[Author];
Brunovic, Dea
[Author];
Papatheodorou, George
[Author];
Christodolou, Dimitris
[Author];
Ilijanic, Nikolina
[Author];
Geraga, Maria
[Author]
Published:
MDPI, 2020-10-10
Language:
English
DOI:
https://doi.org/10.3390/w12102807
Origination:
Footnote:
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Description:
Detailed multi-beam bathymetry, sub-bottom acoustic, and side-scan sonar observations of submerged canyons with tufa barriers were used to characterize the Zrmanja River karst estuary on the eastern Adriatic coast, Croatia. This unique karst environment consists of two submerged karst basins (Novigrad Sea and Karin Sea) that are connected with river canyons named Novsko Ždrilo and Karinsko Ždrilo. The combined use of high-resolution geophysical data with legacy topography and bathymetry data in a GIS environment allowed for the description and interpretation of this geomorphological setting in relation to the Holocene sea-level rise. The tufa barriers had a predominant influence on the Holocene flooding dynamics of the canyons and karst basins. Here, we describe the possible river pathways from the basins during the lowstand and the formation of a lengthening estuary during the Holocene sea-level rise. Based on the analyzed morphologies and the relative sea-level curve for the Adriatic Sea, the flooding of the Novsko Ždrilo occurred 9200 years before present (BP) and Karinsko Ždrilo was flooded after 8400 years BP. The combination of high-resolution geophysical methods gave an accurate representation of the karst estuarine seafloor and the flooding of semi-isolated basins due to sea-level rise.