@misc{indiciaee7f45b9d1066,
  title = {Implications of the minor element content of some major streams of the world},
  author = {W. H. Durum and J. Haffty},
  year = {1963},
  doi = {10.1016/0016-7037(63)90069-3},
  url = {https://pubs.usgs.gov/publication/70010491},
  note = {Source identifier: 70010491}
}