@misc{indiciaefda1ffbb7647,
  title = {Detrital zircon U-Pb geochronology of Cambrian to Triassic miogeoclinal and eugeoclinal strata of Sonora, Mexico},
  author = {G. E. Gehrels and John H. Stewart},
  year = {1998},
  doi = {10.1029/97jb03251},
  url = {https://pubs.usgs.gov/publication/70020704},
  note = {Source identifier: 70020704}
}