High sulfur isotope fractionation associated with anaerobic oxidation of methane in a low sulfate, iron rich environment [PDF]
Frontiers in Earth Science, 2016 Sulfur isotope signatures provide key information for the study of microbial activity in modern systems and the evolution of the Earth surface redox system.
Hannah Sophia Weber +3 more
doaj +5 more sources
Geochimica Et Cosmochimica Acta, 2020 International audienceThis study is aimed to evaluate the role played by the sulfur radical ions (S3− and S2−) and molecular sulfur (S0) on sulfur isotope fractionation and to investigate if these species may leave an isotope fingerprint in hydrothermal ...
Maria A Kokh +2 more
exaly +4 more sources
GEOCHEMICAL JOURNAL, 1966 Sulfur and sulfur compounds involved in the chemical reaction, 3H2SO3= 2H2SO4+S+H2O in the temperature range from 150 to 300°C have been quantitatively determined. After the disproportionation reaction of sulfurous acid is completed, sulfur decreases according to the chemical reaction, 4S+4H2O = 3H2S+H2SO4.
Shinya Oana, Hitomi Ishikawa
openalex +3 more sources
Sulfur Isotope Effects of Dissimilatory Sulfite Reductase
Frontiers in Microbiology, 2015 The precise interpretation of environmental sulfur isotope records requires a quantitative understanding of the biochemical controls on sulfur isotope fractionation by the principle isotope-fractionating process within the S cycle, microbial sulfate ...
William D. Leavitt +6 more
doaj +3 more sources
Patterns of sulfur isotope fractionation during microbial sulfate reduction [PDF]
Geobiology, 2015 AbstractStudies of microbial sulfate reduction have suggested that the magnitude of sulfur isotope fractionation varies with sulfate concentration. Small apparent sulfur isotope fractionations preserved in Archean rocks have been interpreted as suggesting Archean sulfate concentrations of <200 μm, while larger fractionations thereafter have been ...
Bradley, A. S. +5 more
openaire +5 more sources
Fractionation of sulfur isotopes during heterogeneous oxidation of SO2 on sea salt aerosol: a new tool to investigate non-sea salt sulfate production in the marine boundary layer [PDF]
Atmospheric Chemistry and Physics, 2012 The oxidation of SO2 to sulfate on sea salt aerosols in the marine environment is highly important because of its effect on the size distribution of sulfate and the potential for new particle nucleation from H2SO4 (g). However, models of the sulfur cycle
S. Borrmann +4 more
doaj +2 more sources
What Controls the Sulfur Isotope Fractionation during Dissimilatory Sulfate Reduction? [PDF]
ACS Environ Au, 2023 Sulfate often behaves conservatively in the oxygenated environments but serves as an electron acceptor for microbial respiration in a wide range of natural and engineered systems where oxygen is depleted.
Sim MS +6 more
europepmc +2 more sources
Isotope fractionation and sulfur metabolism by pure and enrichment cultures of elemental sulfur‐disproportionating bacteria [PDF]
Limnology and Oceanography, 1998 We have explored the sulfur metabolism and accompanying fractionation of sulfur isotopes during the disproportionation of elemental sulfur by seven different enrichments and three pure bacterial cultures. Cultures were obtained from both marine and freshwater environments.
Canfield, Donald Eugene +2 more
openaire +5 more sources
Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism
Geophysical Monograph Series, Page 247-262., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival +3 more
wiley +10 more sources
Sulfur isotope fractionation during the evolutionary adaptation of a sulfate-reducing bacterium. [PDF]
Appl Environ Microbiol, 2015 Pellerin A +5 more
europepmc +3 more sources