@misc{indiciaee9dc1789d352,
  title = {Age and origin of anorthosites, charnockites, and granulites in the Central Virginia Blue Ridge: Nd and Sr isotopic evidence},
  author = {H.S. Pettingill and A.K. Sinha and M. Tatsumoto},
  year = {1984},
  doi = {10.1007/bf00378106},
  url = {https://pubs.usgs.gov/publication/70013906},
  note = {Source identifier: 70013906}
}