@misc{indiciaeac87fc696696,
  title = {Pyroclastic deposits of the Mount Edgecumbe volcanic field, southeast Alaska: eruptions of a stratified magma chamber},
  author = {J.R. Riehle and D.E. Champion and D. A. Brew and M. A. Lanphere},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/70017050},
  note = {Source identifier: 70017050}
}