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
Organosulfur Aerosols Likely Carried Sulfur MIF Signatures in the Early Earth’s Atmosphere
Geochemistry, Geophysics, Geosystems, 2023 Signatures of mass‐independent fractionation (MIF) of sulfur in Archean sulfide and sulfate minerals are widely thought to record an anoxic early Earth’s atmosphere.
Harry Oduro +3 more
doaj +1 more source
Sulfur isotope fractionation during oxidation of sulfur dioxide: gas-phase oxidation by OH radicals and aqueous oxidation by H2O2, O3 and iron catalysis [PDF]
Atmospheric Chemistry and Physics, 2012 The oxidation of SO2 to sulfate is a key reaction in determining the role of sulfate in the environment through its effect on aerosol size distribution and composition.
J. N. Crowley +5 more
doaj +1 more source
Fractionation of Sulfur Isotopes during Oxidation [PDF]
Bulletin of the Chemical Society of Japan, 1958 The fractionation process of sulfur isotopes during oxidation and the distribution of sulfur isotopes in nature using sulfur-35 as a tracer were examined. Zinc sulfide labeled with S/sup 35/ was prepared from hydrogen sulfide and zinc acetate, and about 1/10 of the total was oxidized to the sulfur.
Iwaji Iwasaki +2 more
openaire +1 more source
Digging Deeper: Bioturbation increases the preserved sulfur isotope fractionation
Frontiers in Marine Science, 2023 Bioturbation enhances mixing between the seafloor and overlying ocean due to changes the redox state of the sediment and influences the biogeochemical cycling of redox-sensitive elements such as sulfur. Before the widespread appearance of burrowing fauna
Sydney Riemer +5 more
doaj +1 more source
Frontiers in Microbiology, 2017 We investigated the influence of organic substrates and phosphate concentration on the rates of dissimilatory microbial sulfate reduction and the 34S/32S isotopic fractionation produced by several Desulfovibrio species.
Shikma Zaarur +3 more
doaj +1 more source
Multiple-sulfur isotope effects during photolysis of carbonyl sulfide [PDF]
Atmospheric Chemistry and Physics, 2011 Laboratory experiments were carried out to determine sulfur isotope effects during ultraviolet photolysis of carbonyl sulfide (OCS) to carbon monoxide (CO) and elemental sulfur (S<sup>0</sup>).
Y. Lin, M. S. Sim, S. Ono
doaj +1 more source
Nuclear Engineering and Technology, 2023 Laboratory experiments and point monitoring of reservoir sediments have proven that stable sulfate reduction (SSR) can lower the concentrations of toxic metals and sulfate in acidic groundwater for a long time.
Zhenzhong Liu +6 more
doaj +1 more source
Fraction of Sulfur Isotopes during Reduction [PDF]
Bulletin of the Chemical Society of Japan, 1958 Barium sufaa labelled with sulfur-35 was reduced, and hydrogen sulfide evolved from the reactions was entrained with carben dioxide. The gas was led into two absorbing cells in series, the first of which contrined a known amount of aqueous zinc acetaa, for radioactivity measurement, and the second contained cadmium carbonate for sufide deaction.
Iwaji Iwasaki +2 more
openaire +1 more source
Tetrathionate and Elemental Sulfur Shape the Isotope Composition of Sulfate in Acid Mine Drainage
Frontiers in Microbiology, 2017 Sulfur compounds in intermediate valence states, for example elemental sulfur, thiosulfate, and tetrathionate, are important players in the biogeochemical sulfur cycle.
Nurgul Balci +3 more
doaj +1 more source