@misc{indiciae6319fea82ff4,
  title = {The National Geochronological Database},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1996},
  doi = {10.3133/fs08596},
  url = {https://pubs.usgs.gov/publication/fs08596},
  note = {Source identifier: fs08596}
}