@misc{indiciae1089ebce0997,
  title = {Gravity studies in the Carolina slate belt near the Haile and Brewer mines, north-central South Carolina},
  author = {Henry Bell and Peter Popenoe},
  year = {1976},
  url = {https://pubs.usgs.gov/publication/70233429},
  note = {Source identifier: 70233429}
}