@misc{indiciae4ca7c1b67cd0,
  title = {Boulder Batholith, Montana: A product of two contemporaneous but chemically distinct magma series},
  author = {Robert I. Tilling},
  year = {1973},
  doi = {10.1130/0016-7606(1973)84<3879:bbmapo>2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70211008},
  note = {Source identifier: 70211008}
}