No evidence for high atmospheric oxygen levels 1,400 million years ago

Zhang et al. (1) recently proposed atmospheric oxygen levels of ∼4% present atmospheric levels (PAL) based on modeling a paleoenvironment reconstructed from trace metal and biomarker data from the 1,400 Ma Xiamaling Formation in China. Intriguingly, this pO2 level is above the threshold oxygen requi...

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Bibliographic Details
Main Authors: Planavsky, Noah J., Cole, Devon B., Reinhard, Christopher T., Diamond, Charles, Love, Gordon D., Luo, Genming, Zhang, Shuang, Konhauser, Kurt O., Lyons, Timothy W.
Other Authors: Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Format: Article
Language:en_US
Published: National Academy of Sciences (U.S.) 2017
Online Access:http://hdl.handle.net/1721.1/109928
https://orcid.org/0000-0002-7380-3707