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EN
Concentrations of iron and manganese were investigated in 26 sediment samples from the Czorsztyn Reservoir (South Poland). Spatial distribution of these metals in the reservoir is generally linked to the grain size distribution of sediments. The presence of manganese and iron in sediments is mainly related to the rock weathering and soil erosion processes. Furthermore, enrichment of waters in manganese and iron follows as a result of the Dunajec River flowing through the Orawsko-Nowotarska Valley, where peat bogs are present. However, anthropogenic influence on manganese and iron concentration levels in sediments cannot be excluded in this area.
EN
The vertical movements in the area of Pieniny klippen belt have been monitored since seventies of the last century applying precise leveling method. After construction of the dam at the Dunajec-river in nineties artificial reservoir has divided the leveling line into two parts. Trigonometric leveling was applied for connecting these parts. The paper presents both, technical problems and the results obtained in two successive observation epochs.
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