@misc{indiciaee865fd9eaf52,
  title = {Minor element abundance in a part of the Brazilian shield},
  author = {N. Herz and C. V. Dutra},
  year = {1960},
  doi = {10.1016/s0016-7037(60)80004-x},
  url = {https://pubs.usgs.gov/publication/70220593},
  note = {Source identifier: 70220593}
}