@misc{indiciaee2917e51b128,
  title = {Compilation of revised ages of volcanic units in the San Juan Mountains, Colorado; recalculated K-Ar age determinations using IUGS constants},
  author = {Ken Hon and Harald H. Mehnert},
  year = {1983},
  doi = {10.3133/ofr83668},
  url = {https://pubs.usgs.gov/publication/ofr83668},
  note = {Source identifier: ofr83668}
}