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Collapsed dolines as a connection between the karst surface and underground (examples from Croatia)

In the Croatian Karst there are a lot of examples of collapsed dolines. In the cases of four selected caves in different Croatian Karst areas (Dolačina mama cave - Žumberak Mt., Tamnica cave and Mrgića pećina - Kordun, Jama na Sredi cave - Cres Island) some geomorphologic elements and features of collapse process were analyzed (the influence of geological conditions and cave's stage of development, the morphology of collapse dolines and cave passages beneath them). The analysis confirms that a collapse is a significant component of cave development and that formation of collapsed dolines is an important factor of Karst evolution.

doline; cave; morphology; geomorphology

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