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Title

The triple oxygen isotope composition of marine sulfate and 130 million years of microbial control

Author
Publication Years
2022-08-02
DOI
Source Title
ISSN
0027-8424
EISSN
1091-6490
Volume119Issue:31
Abstract

The triple oxygen isotope composition (Δ'17O) of sulfate minerals is widely used to constrain ancient atmospheric pO2/pCO2 and rates of gross primary production. The utility of this tool is based on a model that sulfate oxygen carries an isotope fingerprint of tropospheric O2 incorporated through oxidative weathering of reduced sulfur minerals, particularly pyrite. Work to date has targeted Proterozoic environments (2.5 billion to 0.542 billion years ago) where large isotope anomalies persist; younger timescale records, which would ground ancient environmental interpretation in what we know from modern Earth, are lacking. Here we present a high-resolution record of the [Formula: see text]O and Δ'17O in marine sulfate for the last 130 million years of Earth history. This record carries a Δ'17O close to 0o, suggesting that the marine sulfate reservoir is under strict control by biogeochemical cycling (namely, microbial sulfate reduction), as these reactions follow mass-dependent fractionation. We identify no discernible contribution from atmospheric oxygen on this timescale. We interpret a steady fractional contribution of microbial sulfur cycling (terrestrial and marine) over the last 100 million years, even as global weathering rates are thought to vary considerably.

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Indexed By
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Others
Funding Project
NSF Grant["OCE-1821958","OCE-1946137","OCE-1946153","OCE-1821976"]
WOS Research Area
Science & Technology - Other Topics
WOS Subject
Multidisciplinary Sciences
WOS Accession No
WOS:000892124300009
Publisher
ESI Research Field
BIOLOGY & BIOCHEMISTRY;CLINICAL MEDICINE;MULTIDISCIPLINARY;PLANT & ANIMAL SCIENCE;ENVIRONMENT/ECOLOGY;SOCIAL SCIENCES, GENERAL;MICROBIOLOGY;ECONOMICS BUSINESS;IMMUNOLOGY;MATERIALS SCIENCE;MATHEMATICS;SPACE SCIENCE;MOLECULAR BIOLOGY & GENETICS;PHARMACOLOGY & TOXICOLOGY;CHEMISTRY;PSYCHIATRY/PSYCHOLOGY;NEUROSCIENCE & BEHAVIOR;PHYSICS;GEOSCIENCES;AGRICULTURAL SCIENCES;ENGINEERING
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:2
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/365038
DepartmentDepartment of Ocean Science and Engineering
Affiliation
1.Department of Earth and Planetary Sciences,Harvard University,Cambridge,MA 02138,United Kingdom
2.Geological Institute,Department of Earth Sciences,ETH Zürich,Switzerland
3.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Institute of Marine Science,University of California,CA,95064,Argentina
Recommended Citation
GB/T 7714
Waldeck,Anna R.,Hemingway,Jordon D.,Yao,Weiqi,et al. The triple oxygen isotope composition of marine sulfate and 130 million years of microbial control[J]. Proceedings of the National Academy of Sciences of the United States of America,2022,119(31).
APA
Waldeck,Anna R.,Hemingway,Jordon D.,Yao,Weiqi,Paytan,Adina,&Johnston,David T..(2022).The triple oxygen isotope composition of marine sulfate and 130 million years of microbial control.Proceedings of the National Academy of Sciences of the United States of America,119(31).
MLA
Waldeck,Anna R.,et al."The triple oxygen isotope composition of marine sulfate and 130 million years of microbial control".Proceedings of the National Academy of Sciences of the United States of America 119.31(2022).
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