@misc{indiciaeb4e7484a47bf,
  title = {Chert derived from magadiite in a lacustrine deposit near Rome, Malheur County, Oregon},
  author = {Richard A. Sheppard and Arthur J. 3rd Gude},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/70232501},
  note = {Source identifier: 70232501}
}