@misc{indiciaebdf9a4d9e1ce,
  title = {Volcanic stratigraphy and alteration mineralogy of drill cuttings from EWEB 4 drill hole, Clackamas County, Oregon},
  author = {Terry E. Keith and James R. Boden},
  year = {1980},
  doi = {10.3133/ofr80891},
  url = {https://pubs.usgs.gov/publication/ofr80891},
  note = {Source identifier: ofr80891}
}