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EN
The paper presents the results of erratic boulders studies in the area of Trójmiejski Landscape Park (TLP) located west of the Gulf of Gdañsk. The research objects were boulders protected as natural monuments (66 erratics) and all boulders with long axis ³ 50 cm within two testing areas (1100 erratics). Results show that erratics of the TLP often occur in clusters and their spatial density is even near 300 items/km2 in some areas. The authors selected 44 boulders which may be interesting research objects and/or have high values for geotourism. Nine erratics reveal features potentially suitable for the terrestrial cosmogenic nuclides (TCN) dating. Moreover, high number of boulders in the TLP area gives the possibility for investigations of the directions of glacial paleo-transport based on indicator erratics and analysis of glacial striae. Distinctive zones of significant clusters of boulders characterised by high attractiveness and diversified values were also indicated.
PL
W artykule przedstawiono wyniki badań litofacjalnych i strukturalnych osadów budujących przetrwałe moreny czołowe na NW skłonie Garbu Lubawskiego. Uzyskane rezultaty wskazują na złożoną genezę badanych wzgórz oraz na wyraźne cechy świadczące o ich przetrwałości. Zaproponowano modele genetyczne dla analizowanych form, prezentujące główne etapy ich formowania oraz mechanizmy sprzyjające ich zachowaniu w strefie subglacjalnej. Analiza budowy badanych form sugeruje ich „palimpsestowy” charakter oraz możliwy wpływ wieloletniej zmarzliny na procesy przetrwania wzgórz pod ostatnim lądolodem skandynawskim.
EN
This article presents the results of lithofacies and structural studies of deposits in the palimpsest terminal moraines on the NW slope of Lubawa Upland. The results document a complex origin of these hills and some distinct features suggesting their palimpsest nature. We propose genetic models highlighting the main stages of their formation as well as the mechanisms of their preservation in the subglacial system. The inner structure of the hills suggests a crucial role of permafrost in preservation protecting the hills from erosion under the last Scandinavian Ice Sheet.
EN
The paper presents the investigation results concerning the origin and transformation of the morainic landscape in the northwest part of Lubawa Upland. Detailed sedimentological studies of the sediments within the morainic hill in Rożental and the reconstruction of their depositional and deformational processes are presented. We proposed a model of landscape formation and transformation in examined area. The reconstruction of the palaeogeographical conditions which have been prevailed during the late Pleistocene is also proposed. Collected data show that morainic landscape in the northwestern part of Lubawa Upland reveal landforms of an older origin. It is suggested that relief of examined area consist some features of "palimpsest landscape". The older glacial landforms, formed before the last ice advance, can exist here.
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