Naslov
Upper Jurassic Platform succession with characteristics of a deeper-water intraplatform trough (Mt. Svilaja, Croatia)

Autori
Bucković, Damir

Izvornik
Central European geology (1788-2281) 51 (2008), 1; 17-34

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Upper Jurassic; intraplatform trough; Adriatic carbonate platform; Mt. Svilaja; Croatia

Sažetak
From the middle part of the Late Jurassic (Kimmeridgian), the hitherto uniform depositional environment of the Adriatic carbonate platform began to differentiate. In the central part of the platform two intraplatform troughs were formed. One of them stretched from Karlovac area southward and is known as the Lemeš trough. Depositional processes that took place within this trough can be observed in the sedimentary succession of Mt. Svilaja. Based on investigated facies characteristics, five lithofacies units have been distinguished which represent three paleoenvironmental units: (1) shallow subtidal zone below the fair-weather wave-base ; (2) intraplatform trough ; (3) shallow subtidal zone above the fair-weather wave-base. The environmental changes are related to the tectonically controlled retrogradation of the shallow subtidal platform when the deeper-water intraplatform trough area, connected with the open Tethys realm, spread over the sunken part of the platform. Progressive infilling of the trough with bioclastic material led to re-establishment of the shallow subtidal environment and the area of previously existed intraplatform trough was occupied by coral-hydrozoan reefal buildups.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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