engleski

Fluviokarst forms: examples from the island Krk (Croatia

In this paper karst relief, with an emphasis on paleo and recent fluvial network will be analysed. The Island of Krk is one of two biggest Adriatic islands (405 km2). It is located in the northeastern part of the Adriatic Sea channel area, between the Istrian peninsula and the Vinodol coast. This island consists mainly of carbonate rocks: Cretaceous limestones, dolomitic limestones and dolomitic breccias, Palaeogene limestones and carbonate breccias. Outcrops of siliciclastic rocks (marls and flysch) are restricted in relatively narrow and isolated zones. This island is part of the External Dinarides, and its major orographic axis and geological structures have a Dinaric strike (NW–SE to NNW–SSE). This dominant strike of tectonic structures has been disturbed by younger diagonal and transverse strike-slip faults during the Pliocene and Quaternary under the influence of re-oriented, a neotectonic regional stress orientated approximately N–S. Due to this, carbonate rock mass are partially extremely deformed and fissured. Present landscape of the Island of Krk is a consequence of simultaneous influence of tectonic movements, and climatic and sea-level changes during Pliocene and Pleistocene.

fluviokarst; neotectonic; Adriatic Sea

nije evidentirano