@misc{indiciae44cc4ad5bd33,
  title = {Analyses of upper-plate volcanic rocks at Picacho Peak, Pinal County, Arizona},
  author = {W. E. Brooks},
  year = {1985},
  doi = {10.3133/ofr85740},
  url = {https://pubs.usgs.gov/publication/ofr85740},
  note = {Source identifier: ofr85740}
}