@misc{indiciae8906b9258d74,
  title = {Petrology of the zoned calcalkaline magma chamber of Mount Mazama, Crater Lake, Oregon},
  author = {T. H. Druitt and C. R. Bacon},
  year = {1989},
  doi = {10.1007/bf00375310},
  url = {https://pubs.usgs.gov/publication/70015483},
  note = {Source identifier: 70015483}
}