engleski

Lias carbonate platform deposits of Velebit Mt. (Croatia)

At the Kubus-pass there are the sedimentary continuity from the uppermost part of the Lower Lias to the Middle and Upper Lias with a total thickness of ca 270 m. Liassic carbonates are divided into 5 lithofacies units: A = Rhythmically alternating mudstone/wackestone and ooid grainstone interpreted as a typical peritidal deposits with migration of ooid sand from neighbouring shallows during stronger tidal currents and/or storm waves ; B = Lagoonal to shallow subtidal black mudstones with packestone/greinstone intercalations ; C = Rhytmically alternating mudrone/wackestone and grainstone/rudstones deposited in restricted shallow-water areas with periodical agitated water ; D = shalow subtidal lagoonal limestones with Lithiotid tempestite coquinas and E = Bioturbated "spotty limestones" deposited with a low sedimentation rate in a calm large shallows beneth the fair-weather wave base.

Shallow-water carbonates; lithofacies; biofacies; carbonate platform; Lias; Mt. Velebit; Croatia

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