@misc{indiciae97fbc7539783,
  title = {Environment of ore deposition in the Creede mining district, San Juan Mountains, Colorado: Part VI. Maximum duration for mineralization of the OH vein},
  author = {W. R. Campbell and P.B. Barton},
  year = {2005},
  doi = {10.2113/100.7.1313},
  url = {https://pubs.usgs.gov/publication/70027616},
  note = {Source identifier: 70027616}
}