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Postglacial evolution of a small lake in the South Baltic coastal zone based on geochemical, pollen and subfossil Cladocera analysis

Monika Niska
Monika Niska
, 
Joanna Gadziszewska
Joanna Gadziszewska
, 
Jerzy Jonczak
Jerzy Jonczak
, 
Wacław Florek
Wacław Florek
 and 
Bogusława Kruczkowska
Bogusława Kruczkowska
   | Dec 03, 2018
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Article Category: Original research paper
Published Online: Dec 03, 2018
Page range: 384 - 397
Received: Feb 28, 2018
Accepted: Apr 25, 2018
DOI: https://doi.org/10.1515/ohs-2018-0036
© 2018 Faculty of Oceanography and Geography, University of Gdańsk, Poland
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Location of the site (a, b), morphology of the cliff (c, d), location and morphology of the paleolake profile and its calibrated radiocarbon age (e)
Location of the site (a, b), morphology of the cliff (c, d), location and morphology of the paleolake profile and its calibrated radiocarbon age (e)

Figure 2

Lithology, age (in calibrated years BP) and selected physical and chemical properties of the Debina profile
Lithology, age (in calibrated years BP) and selected physical and chemical properties of the Debina profile

Figure 3

Pollen concentration diagram, of non-pollen palynomorphs (NPPs), aquatic and marsh plants from the Debina profile
Pollen concentration diagram, of non-pollen palynomorphs (NPPs), aquatic and marsh plants from the Debina profile

Figure 4

Relative abundance diagram of subfossil cladoceran taxa, the total number of Cladocera specimens, and the number of species in the Debina profile
Relative abundance diagram of subfossil cladoceran taxa, the total number of Cladocera specimens, and the number of species in the Debina profile

Figure 5

Reconstruction of the hydroclimatic conditions in the Debina paleolake during the Late Glacial and the Early Holocene
Reconstruction of the hydroclimatic conditions in the Debina paleolake during the Late Glacial and the Early Holocene

Results of radiocarbon dating of the Debina profile

Depth (cm) Laboratory number Dated material Result of dating in 14C yr BP Calibrated ages in 14C cal yr BP (95.4%) probability Calibrated ages in 14C cal yr BP (Median)
5–10 MKL-2590 bark 2160 ± 60 2318–2001 2165
70–72 MKL-2591 organic remains 8810 ± 90 10173–9596 9870
83–85 MKL-2592 organic remains 9170 ± 110 10663–10160 10365

Particle size distribution and logarithmic measures of the studied deposits

Depth (cm) % of Logarithmic measures (ϕ)
gravel sand silt clay MG σG SkG KG
0–10 0.0 90.7 5.1 4.3 2.83 1.49 0.22 1.42
10–56 0.8 91.4 6.1 2.5 2.46 1.29 0.30 1.13
56–70 0.0 93.8 4.6 1.6 2.24 1.15 0.21 1.16
70–87 1.4 90.3 6.0 3.7 2.55 1.74 0.22 1.54
87–115 0.0 93.8 4.5 1.7 3.00 0.98 0.14 1.13
115–125 4.6 93.0 4.1 2.8 2.57 1.50 -0.07 1.47
125–135 0.0 100.0 0.0 0.0 1.34 0.81 0.00 1.38
135–150 0.0 91.3 7.1 1.6 2.53 1.42 0.23 1.30
150–166 1.2 93.9 4.5 1.6 2.44 1.26 -0.03 1.26
166–186 0.0 27.3 71.4 1.3 5.31 1.67 0.02 0.96
186–190 0.0 100.0 0.0 0.0 2.36 0.76 -0.11 0.91
190–200 0.0 67.9 25.7 6.4 4.21 2.18 0.35 1.29
200–250 0.0 97.8 1.5 0.7 2.26 0.88 0.04 0.90
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