@misc{indiciae86c15a1c75e2,
  title = {Total thickness of sedimentary rocks in the conterminous United States},
  author = {Sherwood E. Frezon and T.M. Finn and Jean M. Lister},
  year = {1983},
  doi = {10.3133/ofr83920},
  url = {https://pubs.usgs.gov/publication/ofr83920},
  note = {Source identifier: ofr83920}
}