@misc{indiciaec27a17c40ebd,
  title = {Mount Mazama and Crater Lake caldera, Oregon},
  author = {Charles R. Bacon},
  year = {1989},
  doi = {10.1029/ft312p0026},
  url = {https://pubs.usgs.gov/publication/70200584},
  note = {Source identifier: 70200584}
}