Original paper

Geological aspects of headwater catchments development in the Lubań Range (the Outer Carpathians, Poland)

Płaczkowska, Eliza

Abstract

Headwater areas are systems located on the border between slope system and fluvial system. A morphometric analysis of headwater catchments makes it easy to identify the relationship between their development and the individual elements of the physical environment. The aim of this paper is to determine the effect of geological structure on the morphometry of headwater areas in the Lubań Range (the Outer Carpathians). To this end, a statistical analysis of 16 morphometric parameters of fifty-five headwater catchments was carried out. An analysis of the variance and correlation coefficient was calculated using the STATISTICA 10 software. The results of the variance analysis showed no difference between the headwater areas built of various rock formations. The location of headwater areas in relation to the rock strata strike does not significantly affect the diversity in their development, either. What is important for the development of headwater areas in the Lubań Range is neotectonic activity. Those headwater areas that are located within the elevated zone have low-lying base levels of erosion. They are much larger than the other headwater areas, slightly longer and are characterized by greater height differences than the headwater areas in the other part of the range. On the other hand, their dissection is generally smaller than that of the headwater areas in the neotectonically inactive part of the range. Thus, it can be concluded that the main role in the evolution of headwaters is primarily controlled by tectonic conditions, i.e. the activity of neotectonic movements and the presence of dislocations.

Keywords

analysis of morphometric parametersheadwater areasneotectonic activitythe lubań rangethe outer carpathians