@misc{indiciae773bf7ad2ef0,
  title = {Sedimentology and provenance of the early Proterozoic Michigamme Formation and Goodrich Quartzite, northern Michigan: Regional stratigraphic implications and suggested correlations},
  author = {Richard W. Ojakangas},
  year = {1994},
  doi = {10.3133/b1904r},
  url = {https://pubs.usgs.gov/publication/b1904R},
  note = {Source identifier: b1904R}
}