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Sygnały zmian środowiskowych późnego vistulianu w archiwach biogenicznych regionu łódzkiego

100%
Dzieduszyńska D., Forysiak J.
Acta Geographica Lodziensia
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2013
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vol. 101
37-48
PL
W ostatnich latach znacząco zwiększyła się ilość danych będących źródłem informacji na temat środowiska późnego vistulianu. Jest to rezultat zwiększonego zainteresowania badaniami osadów biogenicznych, zwierających szczątki organiczne pozwalające na rekonstrukcje warunków środowiska przyrodniczego. Cennym naturalnym archiwum są te profile ze zbiorników akumulacji bioge-nicznej, w których zarejestrowana została zmienność tego okresu zarówno pod względem ekologicznym, jak i zróżnicowania procesów morfogenetycznych. W artykule przedstawiono stanowiska regionu łódzkiego posiadające najpełniejszą dokumentację, opracowaną w ramach badań interdyscyplinarnych. Zwrócono uwagę na możliwości rekonstrukcyjne parametrów środowiska, jaką dają poszczególne analizy paleośrodowiskowe. Wskazano na przewagę stanowisk Polski Środkowej, w stosunku do stano-wisk strefy młodoglacjalnej, spowodowane wcześniejszym rozpoczęciem cyklu akumulacji biogenicznej.
EN
In recent years, the amount of data, which yield information on the environment of the Late Vistulian, significant-ly increased. This is a result of increased interest of analyses of biogenic deposits, containing organic remains which allow to reconstruct past environmental conditions. A valuable archive are these profiles of biogenic sediments in which variation in terms of both ecology and morphogenetic processes has been registered. The article overviews these sites of the Łódź region which provide the most complete record and were analysed within the framework of interdisciplinary studies. Attention is drawn to the possibility to reconstruct environmental parameters that give the individual paleoecological analyses. It was pointed that the sites of the Central Poland have an advantage over those from the young morainic area, due to the earlier start of the bioaccumulation.
2
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Historia rozwoju doliny Warty w basenie uniejowskim

100%
Petera-Zganiacz J., Forysiak J.
Biuletyn Uniejowski
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2012
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vol. 1
23-41
EN
The conditions existing in the Uniejów Basin were favourable to formation of outflow after successive glaciations due to subsidence in Adamow graben. The last glacial episode in this area was the Warta stage. During the recession of continental glacier the waters flew away towards the south, but when the glacier receded to the north, a valley began to form with an outflow in the northern direction. During the time of the Eemian Interglacial the valley bottom was fairly wide and it was on the ordinate of 80.0 m. above see level. In the Vistulian the aggradation tendencies dominated. A high Plenivistulian terrace formed in the Warta valley (but only in the southern part of the Uniejów Basin) and a low Late Plenivistulian terrace. On the surface of the vast low terraca there are remains of multichannel river system which formed in Younger Dryas and were reactivated in the Holocene. The Warta river-bed was gradually lowering from the begining of Holocene until the Atlantic period, when this tendency was reversed as a result of intensified human-generated supply of mineral material into the river-bed. Over the last two centuries the Warta transformed into a one-channel river in consequence of strong human impact.
3

LiDAR, barrows and aeolian hillocks. Between theory and practice

81%
Rzepecki S., Twardy J., Forysiak J.
Sprawozdania Archeologiczne
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2015
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vol. 67
101-111
EN
The article discusses the results of research that was done on an aeolian hillock in the Załęcze Wielkie, Wieluń district. It was discovered in 2011 and initially considered to be the remains of a barrow which was suggested by the results of laser scanning (LiDAR). Archaeological and geological research, however, univocally state the natural origin of the hillock. The authors emphasize the ambiguity of the data obtained from the laser scanning. Research extending beyond LiDAR itself must be a necessary element to acknowledge the anthropomorphic origin of various forms of hillocks
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