Isotopic fingerprints of the Lake Żabińskie (NE Poland) hydrological system on contemporary carbonates precipitated in the lake

Alicja Ustrzycka , Natalia Piotrowska , Alicja Bonk , Janusz Filipiak , Wojciech Tylmann

Abstract

An isotopic monitoring was undertaken in 2012–2014 at Lake Żabińskie (Mazurian Lakeland, NE Poland). The aim was to identify the factors and processes controlling an isotopic composition of the lake water and to explore the mechanism responsible for recording the climatic signal in stable isotope composition of deposited carbonates. δ18O and δ2H in the precipitation, lake water column, inflows and outflow, δ18O and δ13C in the carbonate fraction of sediments trapped in the water column were recorded with monthly resolution. A relationship between δ18O and δ2H in local precipitation was used to estimate the local meteoric water line. The dataset obtained for the water enabled to identify the modification of the water’s isotopic composition due to evaporation, connected with seasonal lake water stratification and mixing patterns. Statistically significant correlation coefficients suggest that the δ18O of the carbonate fraction in the sediment traps depends on the δ18O of rainfall water and on air temperature. The fractionation coefficient α shows that in summer months the carbonate precipitation process is closest to equilibrium. As expected for an exorheic lake, no significant correlation was observed between δ18O and δ13C in precipitated carbonate.
Publication typeIn press (online first, early view)
Author Alicja Ustrzycka
Alicja Ustrzycka,,
-
, Natalia Piotrowska
Natalia Piotrowska,,
-
, Alicja Bonk KGiGCz
Alicja Bonk,,
- Department of Geomorphology and Quarternary Geology
, Janusz Filipiak KMiK
Janusz Filipiak,,
- Department of Meteorology and Climatology
, Wojciech Tylmann KGiGCz
Wojciech Tylmann,,
- Department of Geomorphology and Quarternary Geology
Journal seriesIsotopes in Environmental and Health Studies, ISSN 1025-6016
Issue year2017
Noonline first
Pages1-19
Publication size in sheets0.9
Keywords in Englishcarbon-13, carbonate sedimentation, hydrogen-2, isotope hydrology, lake water, oxygen-18
DOIDOI:10.1080/10256016.2017.1349118
Languageen angielski
Score (nominal)0
ScoreMinisterial score = 20.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.386 (2) - 2016=1.35 (5)
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