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Zapis typu ruchu osuwiska w rzeźbie terenu i jego obraz na wysokorozdzielczych numerycznych modelach terenu (NMT) na przykładzie wybranych osuwisk ze wschodniej części Beskidu Niskiego (Karpaty zewnętrzne, Polska)

Kaczorowski J.

Przegląd Geologiczny

2017

Vol. 65, nr 1

44--2

Landslides are very common features in the Polish Outer Carpathians. In the classical cartography, landslides are recognized based on characteristic land relief: main and side scarps, toe, minor scarps, transverse ridges, recesses and cracks. Formerly, landslide mapping was carried out in the field, preceded by interpretation of topographic maps and aerial photographs. Nowadays, we use spatial data from airborne laser scanning (ALS). Spatial data reprocessing permits to achieve a high-resolution (pixel 1*1 m or more precise) digital terrain model (DTM). Exploration of land relief in search for landslides has become simpler and more accurate. DTM interpretation allows delimiting the boundaries of landslides and elements of their relief. By analysing groups oflandforms it is possible to determine the type of colluvium movement. In the eastern part of the Low Beskid Mts., four types of landslides predominate: rotational slides, translational slides, flows, and complex movements. Types of landslides are usually very well visible on the DTM. Information about types of mass movements can be useful during modelling further landslide activity and designing instrumental identification works and possibility ofstabilization.

The spatio-temporal dynamics of the Ciprnik complex landslide, Tamar Valley, Julian Alps, Slovenia

Šmuc A., Janecka K., Lempa M., Kaczka R. J.

Studia Geomorphologica Carpatho-Balcanica

2015

Vol. 49

35-54

Mass movements represent important processes that shape relief in Alpine areas. In this article, we present the spatio-temporal dynamics of the Ciprnik landslide (Julian Alps, NW Slovenia) and interpret its triggering and evolution. In the study area, mass movement activity is characterised by two phases: normal deposition on the fluvial fans that dominated up to 2000, and a more active phase related to the triggering of the Ciprnik complex landslide and formation of an additional debris-flow fan. The Ciprnik landslide started as a translational movement over the discontinuity plane that was mobilised into a debris-flow. The triggering and slope failure resulted from a combination of tectonics (i.e. dip-slope position of the strata, and strong fracturing), lithology (alternation of thin beds of carbonates and fine-grained clastics), and accumulation of precipitation. The debris-flow fan remains active and interfingers with adjacent active fluvial fans