Sulfide oxidation affects the preservation of sulfur isotope signals

doi:10.1130/G46153.1

	Sulfide oxidation affects the preservation of sulfur isotope signals
	Findlay, Alyssa J.1,2; Boyko, Valeria 1; Pellerin, Andre 2; Ayetisyan, Khoren 1; Guo, Qingjun 3; Yang, Xi 3; Kamyshny, Alexey, Jr.1
刊名	GEOLOGY
	2019-08-01
卷号	47 期号:8 页码:739-743
ISSN号	0091-7613
DOI	10.1130/G46153.1
通讯作者	Findlay, Alyssa J.(afindlay@bios.au.dk) ; Guo, Qingjun(guoqj@igsnrr.ac.cn)
英文摘要	The 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.
资助项目	Israeli 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]
WOS关键词	BACTERIAL DISPROPORTIONATION ; LOW-SULFATE ; FRACTIONATION ; LAKE ; SYSTEMS
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC AMER, INC
WOS记录号	WOS:000476707800019
资助机构	Israeli 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
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/58126]
专题	中国科学院地理科学与资源研究所
通讯作者	Findlay, Alyssa J.; Guo, Qingjun
作者单位	1.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
推荐引用方式 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.