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Precipitation of calcium carbonate in a shallow polymictic coastal lake: assessing the role of primary production, organic matter degradation and sediment mixing

Michał Woszczyk

Michał Woszczyk

Department of Quaternary Geology and Paleogeography, Adam Mickiewicz UniversityPoznań, Poland
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Woszczyk, Michał
  
10 mars 2016
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Catégorie d'article: Original research paper
Publié en ligne: 10 mars 2016
Pages: 86 - 99
Reçu: 01 juin 2015
Accepté: 01 juil. 2015
DOI: https://doi.org/10.1515/ohs-2016-0009
Mots clés
© Faculty of Oceanography and Geography, University of Gdañsk, Poland. All rights reserved.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Location and bathymetry of Lake Sarbsko and distribution of the sampling stations
Location and bathymetry of Lake Sarbsko and distribution of the sampling stations

Figure 2

Chemical composition of Lake Sarbsko during the study period. Surface, bottom and pore waters are distinguished. Plots show average values of each parameter ±1 standard deviation in each data set. Dates of collection are given in the upper panels.
Chemical composition of Lake Sarbsko during the study period. Surface, bottom and pore waters are distinguished. Plots show average values of each parameter ±1 standard deviation in each data set. Dates of collection are given in the upper panels.

Figure 3

The spatial distribution of CaCO3 within the surface sediments of Lake Sarbsko. White circles indicate sediment sampling sites
The spatial distribution of CaCO3 within the surface sediments of Lake Sarbsko. White circles indicate sediment sampling sites

Figure 4

Satellite image of Lake Sarbsko from 09 July 2005 showing widespread whiting in the lake. The image comes from Google Earth.
Satellite image of Lake Sarbsko from 09 July 2005 showing widespread whiting in the lake. The image comes from Google Earth.

The content of CaCO3 and the stable C isotope composition of sedimentary carbonates (δ13Ccalc) from Lake Sarbsko_ Locations of sampling sites is shown in Figure 1_

Sample number Depth b.l.f.

b.l.f. – below lake floor

 CaCO3 δ13Ccalc
(cm) (wt.%) (‰ V-PDB)
SURFACE SAMPLES
SAR 4 0 – 5 24.0 -1.69
SAR 5 0 – 5 10.0 -1.67
SAR 13 0 – 5 28.0 -1.49
SAR 17 0 – 5 25.0 -1.77
SAR 21 0 – 5 25.0 -1.60
SAR 24 0 – 5 28.0 -1.72
SAR 30 0 – 5 25.0 -1.69
SAR 31 0 – 5 25.0 -1.94
SAR 35 0 – 5 25.0 -1.63
SAR 38 0 – 5 24.0 -1.75
SAR 42 0 – 5 28.0 -1.98
SAR 47 0 – 5 27.0 -1.55
Langue:
Anglais
Périodicité:
4 fois par an
Sujets de la revue:
Chimie, Chimie, autres, Géosciences, Géosciences, autres, Sciences de la vie, Sciences de la vie, autres
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