@misc{indiciae45b909298254,
  title = {Chemical analyses of tuffs and some lava flows in Paleogene formations in western Washington and northwestern Oregon},
  author = {P.E. Hammond},
  year = {1996},
  doi = {10.3133/ofr9677},
  url = {https://pubs.usgs.gov/publication/ofr9677},
  note = {Source identifier: ofr9677}
}