Biomarkers and geochemical indicators of Holocene environmental changes in coastal Lake Sarbsko (Poland)

Bechtel, Achim; Woszczyk, Michał; Reischenbacher, Doris; Sachsenhofer, Reinhard F.; Gratzer, Reinhard; Püttmann, Wilhelm; Spychalski, W.

doi:10.1016/j.orggeochem.2007.02.009

Cited by 43 publications

(14 citation statements)

References 47 publications

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“…Instead, MnS is likely to occur in brackish environments, enriched in sulfates and sulfides (Eusterhues et al, 2005). The conclusions of Eusterhues et al (2005) are in good accordance with the fact that in the Sa1/2 profile, the highest contents of Mn IV were obtained in brown muds and olive gyttjas, deposited in the brackish water body (Bechtel et al, 2007;Woszczyk et al, 2008). Relatively small contents of reducible manganese (Mn III ) in the Sa1/2 profile can be attributed to pronounced thermodynamic instability of Mn oxides in anoxic sediments (Donahoe and Liu, 1998).…”

Section: Manganesementioning

confidence: 57%

“…The validity of this interpretation for the sediments of Lake Sarbsko is corroborated by relatively low TOC/N values (7.7 -11.6) obtained in Sa1/2 samples by Bechtel et al (2007) (Table 1), representative for algal organic matter (Meyers and Teranes, 2001).…”

Section: Coppermentioning

confidence: 62%

“…The profile Sa1/2 was earlier investigated in detail by Bechtel et al (2007), Woszczyk and Spychalski (2007) and Woszczyk et al (2008). The lithology of the profile and the age of the sediments are depicted in Figure 2.…”

Section: Lithology Of the Sa1/2 Corementioning

confidence: 88%

“…The contents of terrigenous and biogenic silica (SiO 2ter , SiO 2bio , respectively), total organic carbon (TOC), and total sulfur (S tot ), as well as molar TOC/N ratio mentioned in Table 1 are quoted after Bechtel et al (2007).…”

Section: Figurementioning

confidence: 99%

“…This coincidence may be explained by adsorption of Mg onto diatom frustules (Berner, 1980). Oxidisable magnesium, which is the least concentrated in Lake Sarbsko sediments, might be associated with chlorophyll (C 55 H 72 N 4 O 5 Mg), identified in Sa1/2 samples by Bechtel et al (2007).…”

Section: Magnesiummentioning

confidence: 99%

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Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Woszczyk

Spychalski

2013

Chemical Speciation & Bioavailability

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This article documents and interprets stratigraphical changes in fractionation of Fe, Mn, Mg, K, Pb, Cu and Zn in the Sa1/2 sediment core from a coastal freshwater lake, Lake Sarbsko (northern Poland). The elements were sequentially extracted from the samples to distinguish five geochemical fractions: exchangeable, acid-extractable, reducible, oxidisable and residual. The analyses revealed substantial variations in geochemical partitioning of the elements and showed no correlation between the fractionation patterns and lithology of the sediments. In the sediments of Lake Sarbsko, iron is mainly bound to sulfides. Potassium occurs in its residual form. Magnesium and zinc are associated with carbonates and aluminosilicates, while copper occurs in compounds with organic matter and sulfides. Lead is found in connection with aluminosilicates and, to a lesser extent, with sulfides and organic matter. Manganese is partitioned between the oxidisable, acid-extractable, and exchangeable fractions. Heavy metals and potassium display the overall tendency to reduce the contents of their residual forms towards the top of the depositional sequence. Fe, Mn, Mg and Zn were found to be the most susceptible to post-sedimentary mobilisation.

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Section: Manganesementioning

confidence: 57%

Section: Coppermentioning

confidence: 62%

Section: Lithology Of the Sa1/2 Corementioning

confidence: 88%

Section: Figurementioning

confidence: 99%

Section: Magnesiummentioning

confidence: 99%

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Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Woszczyk

Spychalski

2013

Chemical Speciation & Bioavailability

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Sedimentary ancient DNA and HBI biomarkers as sea‐ice indicators: A complementary approach in Antarctic fjord environments

Pieńkowski,

Szczuciński,

Breszka

et al. 2024

Limnol Oceanogr Letters

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Reliable high‐resolution, pre‐observational‐period sea‐ice datasets are rare but critical for contextualizing recent sea‐ice declines and future scenarios. We combine sedimentary ancient DNA of the sea‐ice dinoflagellate Polarella glacialis (Pgla‐sedaDNA) with selected highly branched isoprenoid (HBI) biomarkers alongside other indicators to reconstruct sub‐decadal sea‐ice changes in a marine archive from the Antarctic Peninsula that extends to ~ 1900 CE. Pre‐1940 CE, the continuously present sea‐ice biomarker IPSO25 yet absent Pgla‐sedaDNA, along with low open‐water biomarkers and total organic carbon (TOC), imply more prominent seasonal sea ice and lower productivity under cooler climate. Post‐1940 CE, rising Pgla‐sedaDNA and open‐water HBIs under climate warming reflect young ice with a retreating sea‐ice edge. Over the last two decades, lower Pgla‐sedaDNA, higher open‐water HBIs and TOC infer known warming, sea‐ice reduction, and increased productivity. Our multiproxy‐based palaeo‐histories agree well with observational data, highlighting the potential of this combination of proxies for nuanced and long‐term sea‐ice reconstructions.

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Geochemical significance of tricyclic and tetracyclic terpanes in source rock extracts from the Offshore Niger Delta Basin, Nigeria

Ogbesejana¹,

Bello²,

Ali³

et al. 2020

Acta Geochim

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Biomarkers and geochemical indicators of Holocene environmental changes in coastal Lake Sarbsko (Poland)

Cited by 43 publications

References 47 publications

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Fractionation of metals in the Sa1/2 sediment core from Lake Sarbsko (northern Poland) and its palaeolimnological implications

Sedimentary ancient DNA and HBI biomarkers as sea‐ice indicators: A complementary approach in Antarctic fjord environments

Geochemical significance of tricyclic and tetracyclic terpanes in source rock extracts from the Offshore Niger Delta Basin, Nigeria

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