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Egerian deposits from the South-Western part of the Pannonian Basin, Croatia (CROSBI ID 528642)

Prilog sa skupa u časopisu | sažetak izlaganja sa skupa | međunarodna recenzija

Avanić, Radovan ; Bakrač, Koraljka ; Miknić, Mirjana ; Grizelj, Anita Egerian deposits from the South-Western part of the Pannonian Basin, Croatia // Joannea Geologie und Paläontologie / Gross, Martin (ur.). 2007. str. 9-10

Podaci o odgovornosti

Avanić, Radovan ; Bakrač, Koraljka ; Miknić, Mirjana ; Grizelj, Anita

engleski

Egerian deposits from the South-Western part of the Pannonian Basin, Croatia

Egerian deposits occur only in north-western part of Croatia, i.e. Hrvatsko Zagorje Basin (PAVELIĆ et al., 2003). Despite of many researches in that area, the stratigraphy of the Egerian deposits is still not clear. New sedimentological, micropaleontological and palynological analyses were carried out on the deposits from the lithostratigraphic column at locality Cerje Jesenjsko in Zagorje Basin, in the north-western part of the Croatia, in order to define the boundaries between local formations: Meljan Formation (lower Egerian) and Golubovec Formation (upper Egerian). The deposits are grouped into three facies: massive to laminated marls and clays, normally graded sands and pyroclastic breccias. Massive to laminated marls and clays dominate in the lower and middle part of the succession. They contain abundant foraminiferal association and numerous dinocyst. In the association of foraminifera Haplophragmoides carinatus, Cribrostomoides subglobosus, Reticulophragmium acutidorsatum, Vaginulinopsis gladius, Bolivina liebusi, Uvigerina mexicana, Cibicidoides similis, Heterolepa costata, Subbotina cf. galavisi, Globigerina ouachitaensis, G. wagneri and Globigerinela megaperta indicate Egerian age (CICHA et al, 1975 ; RÖGL et al, 1998). Dinocysts are dominated by Chiropteridium galea, Deflandrea phosphoritica, Homotryblium tenuispinosum, Polysphaeridium sp. and Spiniferites ramosus. Dinocysts assemblages point out on Chiropteridium Abundance Subzone (Chi) - upper part of Distatodinium biffii Interval Zone (Dbi) of the uppermost Oligocene age (BRINKHUIS et al, 1992). The marls and clays were deposited on the shelf with terrestrial influence. In the upper part of the succession the respectable flow of pyroclastic material occur together with debris flow deposits at the top indicating redeposition from shallow marine environment. Radiometric measurements that were carried out on andesites from the Lepoglava Quarry in vicinity, gave the K-Ar age of 22.8± ; ; ; ; ; 7 Ma (ŠIMUNIĆ & PAMIĆ, 1993). That data is in accordance with our paleonotological results which suggest the Upper Egerian age of the upper part of the succession. The sedimentary succession on the Cerje Jesenjsko locality, starting with shelf deposits and ending with pro-delta deposits shows coarsening-upward tendency, and generally suggests progradation of the delta system.

Egerian; Pannonian Basin; Croatia; sedimentology; dinocyst; foraminifera; pro-delta; delta; progradation

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Podaci o prilogu

9-10.

2007.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

Joannea Geologie und Paläontologie

Gross, Martin

Graz: Landesmuseum Joanneum

1562-9449

Podaci o skupu

2nd International workshop: „ Neogene of Central and South-Eastern Europe“

poster

17.05.2007-21.05.2007

Kapfenstein, Austrija

Povezanost rada

Geologija

Indeksiranost