engleski

Campanian rudist-bearing shallow-water deposits of northern Croatia and Slovenia

In the northern Croatia (Medvednica, Kalnik and Žumberak Mts. with D. Orešje, G. Orešje, Sv. Martin and Brašljevica localities) and in the northeast Slovenia (Pohorje Mt. with Stranice locality) a Campanian shallow water sequences overlay basement rocks (Triassic and Jurassic sediments). Two developments of shallow water sediments are present. At Stranice and G. Orešje localities, clayely-marly sediments successively pass into limestones. Within rudist community, individuals of radiolitids, vaccinitids, hippuritids and hippuritellas occur at Stranice locality, while in G. Orešje locality specimens of hippuritids, vaccinitids, plagioptychids and radiolitids are present. Second development, of D. Orešje, Sv. Martin and Brašljevica localities, starts with limestones which could vertically pass into marls with nannofossils or in limestones with pelagic fossils. Rudist fauna comprise generally vaccinitids, while other rudist could be minorly and sporadically present. The depositional setting of localities may be considered as result of sea–level rise which resulted with flooding of the paleorelief. Different facies developments are probably results of more or less pronounced paleorelief conditions which could outcome in the specific rudist communities.

Campanian; rudists; Croatia; Slovenia

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