@misc{indiciaeec815aab2ced,
  title = {The Midcontinent of the United States: Permissive terrane for an Olympic dam-type deposit?},
  author = {Walden P. Pratt and P.K. Sims},
  year = {1991},
  doi = {10.3133/b1932},
  url = {https://pubs.usgs.gov/publication/b1932},
  note = {Source identifier: b1932}
}