@misc{indiciaef7688ed94378,
  title = {Maps and preliminary interpretation of anomalous rock geochemical data from the Petersburg quadrangle and parts of the Port Alexander, Sitka, and Sumdum quadrangles, southeastern Alaska},
  author = {Susan M. Karl and R. D. Koch},
  year = {1990},
  doi = {10.3133/mf1970c},
  url = {https://pubs.usgs.gov/publication/mf1970C},
  note = {Source identifier: mf1970C}
}