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Record of environmental changes and fluvial phases in the Late Holocene within the area of Podhale (the Carpathians, southern Poland) : studies in the Falsztyński valley

100%

Alexandrowicz W. P.

Geological Quarterly

2019

tom Vol. 63, No. 4

629--642

The Falsztyński valley, in the eastern part of Podhale, Poland includes a low terrace spanning the stream channel, the structure of which has been studied in nine profiles. Five gravel levels and five mud levels with plant and abundant mollusc remains are described, temporally constrained by ten radiocarbon dates. The terrace deposits represent the terminal part of the Atlantic Phase and all of the Late Holocene. The mollusc analysis helped identify phases of environmental change, notably one in the Middle Ages connected with intensive settlement activities in the area of Podhale. These include deforestation, affecting mollusc communities with replacement of forest assemblages by open-country species. The gravel levels records increased fluvial activity periods correlated with humid climate phases. It is possible to distinguish five such periods corresponding to the transition of the Atlantic and Subboreal phases, the middle part of the Subboreal Phase, the transition of the Subboreal and Subatlantic phases, the younger part of the Subatlantic Phase, and the last 200 years. These correspond to the periods of increased fluvial activity in the valleys of other Carpathian rivers.

Diatom biofacies in the SW Gulf of Gdansk and the Vistula Lagoon (the Southern Baltic Sea) as indicators of the basin evolution in the Middle and Late Holocene

84%

Witak M.

Oceanological and Hydrobiological Studies

2013

tom 42

nr 1

Malacofauna in cave deposits of the Udorka valley (Krakow-Czestochowa Upland)

84%

Szymanek M. , Krajcarz M. T. , Krajcarz M. , Sudol M.

Folia Malacologica

2016

tom 24

nr 1

Mid-Holocene foraminiferal assemblages from marine shell-bearing moraines at Hornsund, South Spitsbergen

84%

Birkenmajer K. , Luczkowska E.

nr 4

Tree stumps from the bottom of the Vistula Lagoon as indicators of water level changes in the Southern Baltic during the Late Holocene

84%

Leczynski L. , Miotk-Szpiganowicz G. , Zachowicz J. , Uscinowicz S. , Krapiec M.

nr 2

The Vistula Lagoon is situated along the south-eastern shore of the Gulf of Gdańsk and is linked with the gulf through the Strait of Baltiysk. Separated from the open sea by the Vistula Spit, the Vistula Lagoon is a shallow body of water with a mean depth of 3 m; the bottom is covered with a layer of mud several metres thick. This article presents a unique, newly discovered locality of tree stumps occurring in situ at the bottom of the Vistula Lagoon. The radiocarbon age of the alder stumps and the top of the peat in which they are rooted is Subboreal. The alder wood was dated to 4770±35 and 3295±35 years BP. The top layers of peat were dated to 4670±40, 4410±35 and 3690±35 years BP. The considerable scatter of the dates indicates the significance of erosional processes during marine transgressions. Radiocarbon dates and pollen analyses indicate that in the late Atlantic – early Subboreal periods, the water level of the Vistula Lagoon was about 3 m lower than it is today. The −2 m level was passed no earlier than c. 3500 years ago; the −1 m level was reached around 2000 years ago.

A diatom record of Late Holocene environmental changes in the Gulf of Gdansk

67%

Witak M.

Oceanological Studies

2000

tom 29

nr 2

Malacofauna of Late Holocene overbank deposits in Southern Poland

67%

Alexandrowicz S. W.

nr 4