Badania Fizjograficzne, Seria A, Tom 61, 2010
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Browsing Badania Fizjograficzne, Seria A, Tom 61, 2010 by Author "Milecka, Krystyna"
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Item Wiek osadów międzyglinowych na lewym brzegu Warty w Poznaniu w świetle badań palinologicznych(Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk, 2010) Milecka, Krystyna; Nyćkowiak, Marcin; Troć, MaciejThe main aim of this article was to estimate the time of accumulation of organic sediments from Eemian interglacial, found in inter-clay layers. Palynological analysis was done for the samples of sediments. They were taken within the area of Poznań at the sites of geotechnical and geological research. Rebuilding of city-stadium in Bułgarska street was a good opportunity to core the organic sediments interlying the morainic clays which were accumulated during the Mazovian and Vistulian glaciation. Layers lying between the clays contain organic material very often and this was the case this time. Palynological analysis revealed accumulation of these organic sediments during the 5th and 6th period of Eemian Interglacial according to the biostratygraphical classification of Tobolski (1991).Item Zróznicowanie populacji głazów eolizowanych w różnowiekowych strefach peryglacjalnych Polski Zachodniej(Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk, 2010) Antczak-Górka, Barbara; Nowaczyk, Bolesław; Bednorz, Ewa; Medyńska-Gulij, Beata; Milecka, Krystyna; Fortuniak, Krzysztof; Chlachula, Jiri; Wrzesiński, Dariusz; Bródka, Sylwia; Mazurek, Małgorzata; Makohonienko, Mirosław; Rachlewicz, Grzegorz; Słowik, Marcin; Piekarczyk, Jan; Borówka, KrzysztofThe article presents the results of statistical analysis performed on various populations of wind-polished boulders in the lowland part of Western Poland. The populations were studied in three zones connected with stages of retreat of the Last Glaciation, both in the foreland and hinterland of each of the zones, to accommodate differences in climatic conditions and genetic types of substratum. Those factors influenced the original population of stones that could then be transformed by the wind. It was found that wind-polished boulders were a common occurrence in the study area, whether lying on the surface or as stone horizons underlying aeolian cover sands. Spatial differences among those populations are due to variations of climatic conditions accompanying the successive stages of retreat of the last inland ice.