@misc{indiciae51545db5bd92,
  title = {Keweenawan volcanic sequence},
  author = {N. King Huber and H. R. Cornwall},
  year = {1973},
  doi = {10.1126/science.182.4119.1373.b},
  url = {https://pubs.usgs.gov/publication/70010107},
  note = {Source identifier: 70010107}
}