Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Lubań Range

Sortuj według:

Ogranicz wyniki do:

Aktywność neotektoniczna Pasma Lubania (Gorce) na podstawie analizy parametrów morfometrycznych

Buczek Krzysztof, Górnik Marek

Przegląd Geologiczny

2019

Vol. 67, nr 4

270--278

The aim of this paper is to use a relative tectonic index (Iat) in order to evaluate tectonic activity in the intermediate mountain area of the Lubań Range. To estimate the tectonic activity in the study area, we analyzed 6 DEM derived geomorphic indices for 66 basins: the stream-gradient index (SL), asymmetry factor (Af), basin shape ratio (Bs), hypsometric integral (Hi), valley floor width-valley height ratio (Vf) and mountain-front sinuosity (Smf). These parameters were combined to obtain the relative tectonic activity index (Iat). According to Iat values, ca. 25% of the Lubań Range was classified as areas of relatively high tectonic activity and ca. 72% as moderately tectonically active. The Iat values suggest a higher relative tectonic activity in the western part of the range, since some morphometric indices, like HI and SL, indicate a higher rate of tectonic uplift along the Dunajec Fault and normalfaults on the northern slopes of the Lubań Range. The rate of the tectonic uplift obtained from the Iat values is similar to that derivedfrom river incision. Morphometric analysis as well as field evidence of active tectonics, such as triangularfacets, suggest a high rate of tectonic uplift along the northern margins of the range and probably along the eastern slopes of the Lubań Range. The high relative tectonic activity on the southern slopes in the western part of the Lubań Range is probably related to active subsidence of the Nowy Targ Basin

The reflection of human activity in the sediments of Iwankowskie Lake from Subatlantic Phase (Polish Outer Carpathians)

Bucała A., Margielewski W., Starkel L., Buczek K., Zernitskaya V.

Geochronometria

2014

Vol. 41, no. 4

377--391

The paper presents the analysis of organic and mineral sediments filling the depression, which developed over the landslide located at the slope (767–773 m a.s.l.) of Lubań ridge decscending to the Ochotnica river valley in the Polish Flysch Carpathians. The landslide formed in an early stage of the Subatlantic Phase (2490 ± 35 BP). The top of peat is dated at 1360 ± 50 years BP and is covered by 72 cm of clayey silts with some sandy intercalations, which indicate slopewash after deforestation. The pollen of ruderal plants and Cerealia (undiff.) reflect agricultural activity in the surroundings. The fragments of charcoal indicate the age of the forest clearance to the first half of the 17th century. The late forest clearance at the elevated north exposed slopes followed 200–300 years later in relation to the foundation of the village at the valley floor.