@misc{indiciaed9a56b23ff19,
  title = {Permissive tracts for nickel, copper, platinum group elements (PGE), and chromium deposits of Mauritania (phase V, deliverable 66): Chapter G1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)},
  author = {Cliff D. Taylor and John D. Horton},
  year = {2012},
  doi = {10.3133/ofr20131280g1},
  url = {https://pubs.usgs.gov/publication/ofr20131280G1},
  note = {Source identifier: ofr20131280G1}
}