We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Middle Aptian Orbitolinid limestones in Belgrade (Serbia): microfacies and depositional environment.
- Authors
Đorđević, Bojana; Gawlick, Hans-Jürgen; Djerić, Nevenka; Schlagintweit, Felix; Radonjić, Miloš
- Abstract
Lower Cretaceous (Aptian) shallow-marine limestones with intercalated polymictic conglomerates were investigated with respect to their biostratigraphic age and their microfacies. They are theyoungerpart of thegenerallycarbonate-siliciclastic Lower Cretaceous deep-water(max. few hundred metres) turbiditic sequences ("Paraflysch") of the so-called East Vardarzone in the Belgrade area. The biostratigraphic age of the limestones was determined by orbitolinid foraminifera : the co- occurrence of Dictyoconus? pachymarginalis SCHROEDER and Mesorbitolina texana (ROEMER) besides various other microfossils suggest a biostratigraphic age ofthis shallow-marine limestone succession as middle Aptian (Gargasian). Radiolarite components in the conglomerates are Triassicin age and were derived from the obducted Middle Triassicto Middle Jurassic Neo-Tethys ophiolites and/or their ophiolitic m*langes on the wider Adria plate. From both the first precise biostratigraphic age dating as middle Aptian combined with microfacies analysis of these shallow-marine limestones and the component spectrum in the intercalated conglomerates, it can be concluded that the Lower Cretaceous turbiditic "Paraflysch" succession was deposited on the eastern rim of the Dinarides. The results will allow a better comparison of the different Lower Cretaceous sedimentary successions deposited on the eastern mar gin of the Dinarides.
- Subjects
DINARIC Alps; BELGRADE (Serbia); LIMESTONE; FOSSIL microorganisms; MIDDLE age; CONGLOMERATE; OPHIOLITES
- Publication
Geologia Croatica, 2023, Vol 76, Issue 3, p147
- ISSN
1330-030X
- Publication type
Article
- DOI
10.4154/gc.2023.09