Naslov
Facies diversification and rudists during OAE 1a – a case study of Lower Aptian platform carbonates on the island of Vis (Adriatic Sea, Croatia)

Autori
Korbar, Tvrtko ; Steuber, Thomas ; Fuček, Ladislav ; Lokier, Stephen ; Jobe, Tiffany

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

Izvornik
UWI Mona Contribution to Geology 6 / Mitchell, Simon F - Kingston : UWI Geology Museum, 2011, 16-16

Skup
The Ninth International Congress on Rudist Bivalves

Mjesto i datum
Kingston, Jamajka, 18.07.2011. - 25.07.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Adriatic; carbonate platform; Aptian; OAE 1a; rudist; facies

Sažetak
The Early Aptian (Early Cretaceous) was a time of significant environmental change affecting low-latitude Tethyan carbonate platforms. The Adriatic-Dinaridic Carbonate Platform domain (ADCP) was the largest shallow-water platform domain in the peri-Adriatic region. While pre-Aptian successions of the ADCP are dominated by intertidal environments, the beginning of the Aptian marked the onset of subtidal, more open-platform environments, characterized either by Lithocodium-Bacinella or skeletal, rudist-rich facies. Apart from the northern (marginal) part of the ADCP that is characterized by rudist-coral-stromatoporoid communities which flourished within a high-energy belt, other areas of the platform are characterized by oligospecific associations of Toucasia and Requienia. Offneria-bearing high-energy deposits are to date reported just from a few occurrences.Our data from the island of Vis show that significant facies diversification was triggered by OAE 1a, while facies stacking pattern was driven by coeval sea-level changes. However, shallow-water carbonate deposition has been continuous during and after the OAE 1a, up to the regional Aptian-Albian emergence.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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