@misc{indiciaefef596c47b3e,
  title = {Geochemistry of the Chattanooga shale, Dekalb County, central Tennessee.},
  author = {J.S. Leventhal and Paul H. Briggs and J.W. Baker},
  year = {1983},
  url = {https://pubs.usgs.gov/publication/70011159},
  note = {Source identifier: 70011159}
}