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Isotopic investigations of uppermost sediments from Lake Wigry (NE Poland) and its environment

Pawlyta J., Pazdur A., Piotrowska N., Poręba G., Sikorski J., Szczepanek M., Król K., Rutkowski J., Hałas S.

Geochronometria

2004

Vol. 23

71-78

This paper presents the results of the first isotopic investigations of sediments recovered from Lake Wigry (NE-Poland). In the spring/summer 2002 few sediment cores, plant samples and water profiles were collected specially for isotopic investigations. We obtained 210Pb activity profiles, 137Cs activity profiles and 14C activity/age profiles. Apparent ages of carbonate fraction for all sediment cores were determined. Sedimentation rates for collected cores were estimated using 14C dating method. In addition oxygen isotopic ratios of the water profiles, carbon stable isotopes ratio of collected sediment cores were determined.