@misc{indiciae954ec428a19d,
  title = {Determination of iridium in mafic rocks by atomic absorption},
  author = {F. S. Grimaldi and M. M. Schnepfe},
  year = {1970},
  doi = {10.1016/0039-9140(70)80010-8},
  url = {https://pubs.usgs.gov/publication/70010240},
  note = {Source identifier: 70010240}
}