@misc{indiciaeae8628bc2650,
  title = {The Pikes Peak batholith, Colorado front range, and a model for the origin of the gabbro-anorthosite-syenite-potassic granite suite},
  author = {F. Barker and D. R. Wones and W. N. Sharp and G. A. Desborough},
  year = {1975},
  doi = {10.1016/0301-9268(75)90001-7},
  url = {https://pubs.usgs.gov/publication/70010267},
  note = {Source identifier: 70010267}
}