@misc{indiciae57dfd1aa66c2,
  title = {Studies in the Providenclia area, Mexico, II, K-Ar and Rb-Sr ages of intrusive rocks and hydrothermal minerals},
  author = {M. A. Lanphere},
  year = {1967},
  doi = {10.2113/gsecongeo.62.6.862},
  url = {https://pubs.usgs.gov/publication/70221303},
  note = {Source identifier: 70221303}
}