@misc{indiciae013e0bf7e71a,
  title = {Distribution of salt structures in the Gulf of Mexico map and descriptive text},
  author = {R. G. Martin},
  year = {1980},
  doi = {10.3133/mf1213},
  url = {https://pubs.usgs.gov/publication/mf1213},
  note = {Source identifier: mf1213}
}