Technical comment on “Reexamination of 2.5-Ga ‘whiff’ of oxygen interval points to anoxic ocean before GOE”
Abstract
Many lines of inorganic geochemical evidence suggest transient “whiffs” of environmental oxygenation before the Great Oxidation Event (GOE). Slotznick et al. assert that analyses of paleoredox proxies in the Mount McRae Shale, Western Australia, were misinterpreted and hence that environmental O2 levels were persistently negligible before the GOE. We find these arguments logically flawed and factually incomplete.
Citation
Anbar , A D , Buick , R , Gordon , G W , Johnson , A C , Kendall , B , Lyons , T W , Ostrander , C M , Planavsky , N J , Reinhard , C T & Stüeken , E E 2023 , ' Technical comment on “Reexamination of 2.5-Ga ‘whiff’ of oxygen interval points to anoxic ocean before GOE” ' , Science Advances , vol. 9 , no. 14 , eabq373 . https://doi.org/10.1126/sciadv.abq3736
Publication
Science Advances
Status
Peer reviewed
ISSN
2375-2548Type
Journal article
Description
Funding: We thank the NASA Astrobiology Program and Canada Research Chairs Program for supporting work on this comment.Collections
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