@misc{indiciae92a70be30a05,
  title = {Hydrocarbon source-rock evaluation - Solor Church Formation (middle Proterozoic, Keweenawan Supergroup), southeastern Minnesota},
  author = {J. R. Hatch and G. B. Morey},
  year = {1984},
  doi = {10.3133/ofr84554},
  url = {https://pubs.usgs.gov/publication/ofr84554},
  note = {Source identifier: ofr84554}
}