@misc{indiciae4bd9b02e7629,
  title = {Preservation of random megascale events on Mars and Earth: Influence on geologic history: GSA special papers},
  author = {Mary G. Chapman and Laszlo P. Keszthelyi},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70200860},
  note = {Source identifier: 70200860}
}