@misc{indiciae630ed795fc3a,
  title = {The mesoproterozoic midcontinent rift system, Lake Superior region, USA},
  author = {R.W. Ojakangas and G. B. Morey and J.C. Green},
  year = {2001},
  doi = {10.1016/s0037-0738(01)00085-9},
  url = {https://pubs.usgs.gov/publication/70023753},
  note = {Source identifier: 70023753}
}