Naslov
Planktonic Foraminifera turnover at the Eocene/Oligocene Boundary (Palmyra Region, Syria)

Autori
Hernitz Kučenjak, Morana ; Premec-Fuček, Vlasta ; Slavković, Renata

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

Izvornik
3. Hrvatski geološki kongres, Knjiga sažetaka / Velić, Ivo ; Vlahović, Igor ; Biondić, Ranko - Zagreb : Hrvatski geološki institut, 2005, 55-56

Skup
3. Hrvatski geološki kongres

Mjesto i datum
Opatija, Hrvatska, 29.09.2005. - 01.10.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
planktonic foraminifera; eocen/Oligocen boundary

Sažetak
A detailed micro-paleontological investigation was performed on planktonic foraminiferal assemblages, spanning the interval from Zone P15 (Late Eocene) to Zone P22 (Late Oligocene) in three deep exploration wells (Jihar-1, Jihar-4 and Jihar-5) in Palmyra region in Syria. Planktonic foraminifera represented by turborotalids, pseudohastigerinids, small acarinids and rare tenuitelids are dominated in the Late Eocene foraminiferal association. Only a small amount of benthic foraminifera have been observed, therefore, sedimentation took place in deep, open sea environment. In the entire association, the gradual proportional increase of the benthic foraminifera through the Oligocene shows shallowing of the sedimentation environment. Subtropical, specialize planktonic foraminifera were replaced by opportunistic, cooler forms, such as globigerinids, cassigerinelids and globoturborotalitids. It can be concluded that the cooling reaches its maximum in the Eocen/Oligocen boundary.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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