@misc{indiciae8912e59e92ed,
  title = {Base- and precious-metal concentrations of early Proterozoic massive sulfide deposits in Arizona; crustal and thermochemical controls of ore deposition},
  author = {Ed DeWitt},
  year = {1995},
  doi = {10.3133/b2138},
  url = {https://pubs.usgs.gov/publication/b2138},
  note = {Source identifier: b2138}
}