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Liptovský Mikuláš, Slovakia

Bella P.,Statna Ochrana Prirody SR | Bella P.,Catholic University in Ruzomberok
Geograficky Casopis | Year: 2012

Caves as valuable or rare natural sites present specific geoecological systems with several peculiar features of an underground environment. Mainly in karst areas cave geosystems have stronger connections with surface landscape systems. Many caves are influenced and disturbed by multiple negative anthropogenic impacts. The karst landscape is a very unstable natural system, its regeneration capacity is low and in some cases non-existent. Negative anthropogenic impact interrupts or changes the spatial structure, behaviour, seasonal etocycles or successions dynamics of cave geosystems. From the viewpoint of rational use and conservation of caves the paper deals with the vulnerability and ecostabilizing factors of cave geosystems in relation to the self-regulation processes and reversible changes of cave environment. The karst disturbance index is specified for measuring the degree of anthropogenic disturbance in caves. © Institute of Geography SAS. Source

Terrestrial laser scanning was used for a detailed survey and 3D visualization of the Dupnica Cave. This cave of disputable origin is located at the fault zone among the Zapadne Tatry Mts., Chočske vrchy Mts. and Liptovska kotlina Basin (the northern part of Slovakia). The cave plan drawn based on a classic surveying is too generalizing. It does not display smaller solutional and breakdown forms, and structural geological discontinuities (located mostly on the high walls and ceiling of main chamber). The origin of primary solutional chamber and adjacent cupola-like cavities and blind chimneys was controlled by steep faults. Later, these solutional forms were remodelled by breakdown processes, mainly along intersecting faults. In the SE part of the cave, well-preserved original solutional morphologies of the lateral passage controlled by the steep ENE-WSW fault are clear indicators of speleogenesis by ascending (probably thermal) waters. The formation of the cave by ascending waters was terminated by the activity of NNE-SSW fault. This suggests that the stress field in the studied area changed during the Quaternary from the N-S oriented extension to the extension generally oriented to the E-W direction. Source

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