@misc{indiciae6d3686bb35c1,
  title = {Oligocene basaltic volcanism of the northern Rio Grande Rift: San Luis Hills, Colorado},
  author = {R. A. Thompson and C.M. Johnson and H. H. Mehnert},
  year = {2012},
  doi = {10.1029/91jb00068},
  url = {https://pubs.usgs.gov/publication/70016412},
  note = {Source identifier: 70016412}
}