@misc{indiciaed3c0bc615f5a,
  title = {Heavy-Mineral Placer Potential Map of the U.S. Continental Shelf, Western and Northern Gulf of Mexico},
  author = {Gerald L. Shideler},
  year = {1988},
  doi = {10.3133/mf2037},
  url = {https://pubs.usgs.gov/publication/mf2037},
  note = {Source identifier: mf2037}
}