The origin of coarsening-upward cycle architecture- an example from Middle Liassic platform carbonates of mountain Velika Kapela (Croatia) (CROSBI ID 119496)
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Bucković, Damir ; Cvetko Tešović, Blanka ; Mezga Aleksandar
engleski
The origin of coarsening-upward cycle architecture- an example from Middle Liassic platform carbonates of mountain Velika Kapela (Croatia)
The Middle Liassic carbonate succession of Mt Velika Kapela is composed of coarsening-upward cycles. Analysis of facies alternation and stacking pattern reveals a sporadic appearance of oolitic facies indicating oolitic shoal progradation from neighbouring topographic highs. These progradations interrupted the constant “ in situ” carbonate sediment aggradation, which produced typical coarsening-upward architecture. Two types of coarsening-upward cycles were distinguished: 1 — cycles with peloidal-bioclastic upper cycle members, and 2 — cycles with oolitic upper cycle members. These coarsening-upward cycles are regarded as a record of the sea-bottom oscillations below and above the fair-weather wave-base and model for evolution and cyclic response of carbonate facies to these oscillations is presented.
Croatia; Adriatic-Dinaric carbonate platform; autocyclicity; carbonate sedimentology; Middle Liassic limestones; facies analysis
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