@misc{indiciae5966793e4ba0,
  title = {Igneous activity in the Comstock District, Nevada},
  author = {F. C. Calkins},
  year = {2014},
  doi = {10.1029/tr019i001p00262-1},
  url = {https://pubs.usgs.gov/publication/70206635},
  note = {Source identifier: 70206635}
}