@misc{indiciae2d9e7a5ad2ba,
  title = {Lead-isotopic evidence for distinct source of granite and for distinct basement in the northern Appalachians, Maine},
  author = {R. A. Ayuso},
  year = {1986},
  doi = {10.1130/0091-7613(1986)14<322:lefdso>2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70014483},
  note = {Source identifier: 70014483}
}