@misc{indiciae3aad761fecae,
  title = {Origin of late Archean granite: geochemical evidence from the Vermilion Granitic Complex of northern Minnesota},
  author = {W. C. Day and P.W. Weiblen},
  year = {1986},
  doi = {10.1007/bf00389388},
  url = {https://pubs.usgs.gov/publication/70015670},
  note = {Source identifier: 70015670}
}