Details
| Original language | English |
|---|---|
| Pages (from-to) | 166-179 |
| Number of pages | 14 |
| Journal | Isotopes in Environmental and Health Studies |
| Volume | 48 |
| Issue number | 1 |
| Publication status | Published - Mar 2012 |
Abstract
In this work, the biogeochemistry of marine sediments from the Kiel Bight, coastal SW Baltic Sea, is studied based on the abundance and isotopic composition of organic carbon and different forms of sedimentary sulphur. Active bacterial sulphate reduction, partly under sulphate-limiting conditions, is evident from paired δ 34S and δ 18O values of pore water sulphate. The resulting pore water sulphide is partly precipitated as acid-volatile iron sulphide and subsequently forms sedimentary pyrite, partly serves in later diagenetic sulphurisation of organic matter, or remains dissolved in the pore water, all evident from the respective δ 34S values. Microbial sulphate turnover is associated with an apparent isotopic fractionation between dissolved sulphate and dissolved sulphide (Δ 34S) that varies between 46 and 66‰.
Keywords
- Baltic Sea, isotope biogeochemistry, isotope ecology, oxygen-18, pore water, sediments, sulphur turnover, sulphur-32, sulphur-33, sulphur-34
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Chemistry
- Environmental Science(all)
- General Environmental Science
- Chemistry(all)
- Inorganic Chemistry
Sustainable Development Goals
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In: Isotopes in Environmental and Health Studies, Vol. 48, No. 1, 03.2012, p. 166-179.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Sulphur diagenesis in the sediments of the Kiel Bight, SW Baltic Sea, as reflected by multiple stable sulphur isotopes
AU - Strauss, Harald
AU - Bast, Rebecca
AU - Cording, Anja
AU - Diekrup, David
AU - Fugmann, Artur
AU - Garbe-Schönberg, Dieter
AU - Lutter, Andreas
AU - Oeser, Martin
AU - Rabe, Katharina
AU - Reinke, Debora
AU - Teichert, Barbara M.A.
AU - Westernströer, Ulrike
PY - 2012/3
Y1 - 2012/3
N2 - In this work, the biogeochemistry of marine sediments from the Kiel Bight, coastal SW Baltic Sea, is studied based on the abundance and isotopic composition of organic carbon and different forms of sedimentary sulphur. Active bacterial sulphate reduction, partly under sulphate-limiting conditions, is evident from paired δ 34S and δ 18O values of pore water sulphate. The resulting pore water sulphide is partly precipitated as acid-volatile iron sulphide and subsequently forms sedimentary pyrite, partly serves in later diagenetic sulphurisation of organic matter, or remains dissolved in the pore water, all evident from the respective δ 34S values. Microbial sulphate turnover is associated with an apparent isotopic fractionation between dissolved sulphate and dissolved sulphide (Δ 34S) that varies between 46 and 66‰.
AB - In this work, the biogeochemistry of marine sediments from the Kiel Bight, coastal SW Baltic Sea, is studied based on the abundance and isotopic composition of organic carbon and different forms of sedimentary sulphur. Active bacterial sulphate reduction, partly under sulphate-limiting conditions, is evident from paired δ 34S and δ 18O values of pore water sulphate. The resulting pore water sulphide is partly precipitated as acid-volatile iron sulphide and subsequently forms sedimentary pyrite, partly serves in later diagenetic sulphurisation of organic matter, or remains dissolved in the pore water, all evident from the respective δ 34S values. Microbial sulphate turnover is associated with an apparent isotopic fractionation between dissolved sulphate and dissolved sulphide (Δ 34S) that varies between 46 and 66‰.
KW - Baltic Sea
KW - isotope biogeochemistry
KW - isotope ecology
KW - oxygen-18
KW - pore water
KW - sediments
KW - sulphur turnover
KW - sulphur-32
KW - sulphur-33
KW - sulphur-34
UR - http://www.scopus.com/inward/record.url?scp=84858379241&partnerID=8YFLogxK
U2 - 10.1080/10256016.2012.648930
DO - 10.1080/10256016.2012.648930
M3 - Article
C2 - 22303924
AN - SCOPUS:84858379241
VL - 48
SP - 166
EP - 179
JO - Isotopes in Environmental and Health Studies
JF - Isotopes in Environmental and Health Studies
SN - 1025-6016
IS - 1
ER -