@misc{indiciae2406b3b1b405,
  title = {Geochemical data from the departments of Choco and Antioquia, Colombia; Part A, General discussion},
  author = {G. J. Orris and H.A. Peirce and T.W. Wells},
  year = {1994},
  doi = {10.3133/ofr94623a},
  url = {https://pubs.usgs.gov/publication/ofr94623A},
  note = {Source identifier: ofr94623A}
}