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Sulfide oxidation affects the preservation of sulfur isotope signals
Findlay, Alyssa J.1,2; Boyko, Valeria1; Pellerin, Andre2; Ayetisyan, Khoren1; Guo, Qingjun3; Yang, Xi3; Kamyshny, Alexey, Jr.1
2019-08-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume47Issue:8Pages:739-743
Corresponding AuthorFindlay, Alyssa J.(afindlay@bios.au.dk) ; Guo, Qingjun(guoqj@igsnrr.ac.cn)
AbstractThe accumulation of oxygen in Earth's atmosphere and oceans in the late Archean had profound implications for the planet's biogeochemical evolution. Oxygen impacts sulfur cycling through the oxidation of sulfide minerals and the production of sulfate for microbial sulfate reduction (MSR). The isotopic signature of sulfur species preserved in the geologic record is affected by the prevailing biological and chemical processes and can therefore be used to constrain past oxygen and sulfate concentrations. Here, in a study of a late Archean analogue, we find that the sulfur isotopic signature in the water column of a seasonally stratified lake in southern China is influenced by MSR, whereas model results indicate that the isotopic signature of the underlying sediments can be best explained by concurrent sulfate reduction and sulfide oxidation. These data demonstrate that small apparent sulfur isotope fractionations (delta S-34(sulfate-AVS) = 4.2 parts per thousand-1.5 parts per thousand; AVS-acid volatile sulfides) can be caused by dynamic sulfur cycling at millimolar sulfate concentrations. This is in contrast to current interpretations of the isotopic record and indicates that small fractionations do not necessarily indicate very low sulfate or oxygen.
DOI10.1130/G46153.1
WOS KeywordBACTERIAL DISPROPORTIONATION ; LOW-SULFATE ; FRACTIONATION ; LAKE ; SYSTEMS
Indexed BySCI
Language英语
Funding ProjectIsraeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[ISF 2214/115] ; Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[NSFC 41561144005] ; Israeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC)[41625006] ; Fulbright Postdoctoral Fellowship ; Kreitman Fellowship ; Marie Curie European Fellowship[SedSulphOx 746872] ; Danish National Research Foundation[DNRF104] ; European Research Council[294200]
Funding OrganizationIsraeli Science Foundation (ISF)-National Natural Science Foundation of China (NSFC) ; Fulbright Postdoctoral Fellowship ; Kreitman Fellowship ; Marie Curie European Fellowship ; Danish National Research Foundation ; European Research Council
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000476707800019
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58127
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFindlay, Alyssa J.; Guo, Qingjun
Affiliation1.Ben Gurion Univ Negev, Dept Geol & Environm Sci, IL-653 Beer Sheva, Israel
2.Aarhus Univ, Ctr Geomicrobiol, Dept Biosci, DK-8000 Aarhus C, Denmark
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Findlay, Alyssa J.,Boyko, Valeria,Pellerin, Andre,et al. Sulfide oxidation affects the preservation of sulfur isotope signals[J]. GEOLOGY,2019,47(8):739-743.
APA Findlay, Alyssa J..,Boyko, Valeria.,Pellerin, Andre.,Ayetisyan, Khoren.,Guo, Qingjun.,...&Kamyshny, Alexey, Jr..(2019).Sulfide oxidation affects the preservation of sulfur isotope signals.GEOLOGY,47(8),739-743.
MLA Findlay, Alyssa J.,et al."Sulfide oxidation affects the preservation of sulfur isotope signals".GEOLOGY 47.8(2019):739-743.
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