Authigenic sulfide and carbonate mineral formation in Holocene sediments of the Baltic Sea

Sternbeck, John; Sohlenius, Gustav

doi:10.1016/s0009-2541(96)00104-0

Cited by 135 publications

(78 citation statements)

References 67 publications

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“…Despite values of magnetic concentration parameters are higher in A9 than A8 and E601, a slight decrease instead of an increase appear s in core A9 during this period. As many previous research suggested (Berner et al 1979;Cutter and Velinsky 1988; Torii et al 1996;Sternbeck and Sohlenius 1997), magnetite can transform to iron sulfides within the reductive environment of coastal waters. Compared to A8 and E601, contribution of component 2 (greigite) reached a relatively high level in sediments of core A9 (Fig.…”

Section: Discussionmentioning

confidence: 79%

Magnetic mineralogy and its implication of contemporary coastal sediments from South China

et al. 2012

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Magnetic parameters have been widely used as a rapid, cost-effective, and non-destructive method. To assess whether their magnetic properties reflect the development history in the Pearl River Delta, three sediment cores collected from South China coastal waters were selected for magnetic research. The results indicate that the predominant ferrimagnetic mineral is magnetite, with an additional smaller amount of surprisingly high-coercive greigite. Fine-grained superparamagnetic and singledomain particles of magnetite and the relative contribution of greigite are increased when the total concentration of ferrimagnetic minerals is higher. Three well-known stages of the Chinese history, i.e., iron smelting, cultural revolution, and the latest phase of opening and reforming were identified in the vertical variation of magnetic concentration parameters. Although the record of the three cores is not completely consistent, the results point out that magnetic concentration parameters can reflect the development and pollution history in surrounding coastal areas.

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Section: Discussionmentioning

confidence: 79%

Magnetic mineralogy and its implication of contemporary coastal sediments from South China

et al. 2012

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“…Mn-enriched calcite, very often reported from aquatic sediments (Tessier et al, 1979;Cundy and Croudace, 1995;Kiratli and Ergin, 1996;Sternbeck and Sohlenius, 1997;Zerbe et al, 1999;Balkis and ÇaÈatay, 2001;Eusterhues et al, 2005;Shen et al, 2007), forms from substitution of Ca 2+ ions in calcite crystals by Mn 2+ , whose ionic radius is similar to that of Ca 2+ (Shen et al, 2007). As observed by Calvert and Pedersen (1993), carbonate-associated Mn precipitates just below the anoxic sediment -oxygenated bottom water interface, and thus indicates oxidising conditions in lakes.…”

Section: Manganesementioning

confidence: 90%

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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“…3). However, the higher sulphur content in zones B1, B3 and B5 is interpreted as an indicator of anoxic condition (Sternbeck, Sohlenius 1997) which reflect increase of salinity and prevailing halocline. Intervals of higher salinity level reconstructed within the above mentioned zones are well correlated with high sulphur concentration and sections of laminated sediment.…”

Section: Spring Sea Surface Salinity Estima-tion For the Core 303610-12mentioning

confidence: 99%

Diatom-based estimation of sea surface salinity in the south Baltic Sea and Kattegat

Kotrys

Tomczak

Witkowski

et al. 2014

Baltica

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The new diatom-based sea-surface salinity (SSS) estimation has been applied to a collection of 27 taxa in 48 present-day sediment and surface water samples recovered in the Baltic Sea and Kattegat. The sediment core 303610-12 (2005) from the Eastern Gotland was chosen for the study of the Holocene sequence spanning the past 8160 yrs BP. The Artificial Neuronal Network (ANN) method provided an estimation of spring (MarchApril) SSS values ranging between 7.04-8.25 ‰. The low amplitude of salinity change might be caused by mixing of fresh water with upper surface layer of the Baltic Sea due to high precipitation and riverine input. These findings were compared with independent geochemical proxies for salinity (K, Ti and S) derived from XRF Core Scanner record. Significant correlation between salinity and sulphur records and an inverse correlation between K and Ti demonstrate that the ANN method, when combined with quantitative and qualitative analyses of diatoms, provides a useful tool for palaeo-salinity reconstructions from the Holocene sediments of the Baltic Sea.

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Authigenic sulfide and carbonate mineral formation in Holocene sediments of the Baltic Sea

Cited by 135 publications

References 67 publications

Magnetic mineralogy and its implication of contemporary coastal sediments from South China

Magnetic mineralogy and its implication of contemporary coastal sediments from South China

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

Diatom-based estimation of sea surface salinity in the south Baltic Sea and Kattegat

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