Small Karst Features (Karren) of Dugi Otok Island and Kornati Archipelago Coastal Karst (Croatia)

Dražen Perica, Tihomir Marjanac, Branka Aničić, Irena Mrak, Mladen Juračić

DOI: https://doi.org/10.3986/ac.v33i1.319

Abstract

Za površje Dugega otoka in Kornatov je značilna kraška morfologija. Drobne skalne kraške površinske oblike so najbolje razvite ob obali, v območju vpliva morskih valov. Razlike v razvitosti drobnih skalnih kraških površinskih oblik so posledica součinkovanja valov, litologije, nagiba in debeline kamninskih skladov. Med različnimi tipi drobnih skalnih kraških površinskih oblik so najbolj zanimive poklinaste škraplje in mrežaste korozijske razjede, katerih začetna oblika so biokorozijske jamice. Starost nekaterih drobnih skalnih kraških površinskih oblik lahko ocenimo glede na njihovo razvitost v antičnih kamnolomih. Predvidevamo pa lahko tudi njihov bodoči razvoj.

Dugi otok Island and Kornati archipelago islands are characterized by karst morphology. Small karst features are particulary well developed along the coast in the swash zone, and signifi cant differences can be observed due to different interaction of wave action, bedding attitude, bed thicknesses and lithology. Among other karren types, fissure- and network-type karren are particulary interesting, both of which start developing from initial root karren. The age of some of these small karst features can be estimated by their occurrence in ancient quarries, and we suggest their historic age. We can envisage the future development of these small coastal corrosion forms.

 

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DOI: https://doi.org/10.3986/ac.v33i1.319

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