Response to comment on “Reexamination of 2.5-Ga ‘whiff’ of oxygen interval points to anoxic ocean before GOE”

Sedimentological, textural, and microscale analyses of the Mount McRae Shale revealed a complex postdepositional history, previously unrecognized in bulk geochemical studies. We found that metal enrichments in the shale do not reside with depositional organic carbon, as previously proposed by Anbar...

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Detalles Bibliográficos
Autores principales: Slotznick, Sarah P., Johnson, Jena E., Rasmussen, Birger, Raub, Timothy D., Webb, Samuel M., Zi, Jian-Wei, Kirschvink, Joseph L., Fischer, Woodward W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2023
Materias:
Earth, Environmental, Ecological, and Space Sciences
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10081838/
https://www.ncbi.nlm.nih.gov/pubmed/37027468
http://dx.doi.org/10.1126/sciadv.adg1530
Descripción
Sumario:Sedimentological, textural, and microscale analyses of the Mount McRae Shale revealed a complex postdepositional history, previously unrecognized in bulk geochemical studies. We found that metal enrichments in the shale do not reside with depositional organic carbon, as previously proposed by Anbar et al., but with late-stage pyrite, compromising claims for a “whiff” of oxygen ~50 million years before the Great Oxygenation Event.

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