@misc{indiciaed291e4f34945,
  title = {Extraterrestrial demise of banded iron formations 1.85 billion years ago},
  author = {J. F. Slack and W.F. Cannon},
  year = {2009},
  doi = {10.1130/g30259a.1},
  url = {https://pubs.usgs.gov/publication/70035961},
  note = {Source identifier: 70035961}
}