@misc{indiciaeeaf263f7e31e,
  title = {The Gulf of Maine rutile province; accumulation of fine-grained, authigenic titanium oxide from sandstone and shale source rocks},
  author = {P. C. Valentine and J.A. Commeau},
  year = {1989},
  doi = {10.3133/ofr89532},
  url = {https://pubs.usgs.gov/publication/ofr89532},
  note = {Source identifier: ofr89532}
}