@misc{indiciae46d82a26192d,
  title = {New constraints on Precambrian ocean composition.},
  author = {J P Grotzinger and J F Kasting},
  year = {1993},
  doi = {10.1086/648218},
  url = {https://pubmed.ncbi.nlm.nih.gov/11537740/},
  note = {Source identifier: 11537740}
}