@misc{indiciae30e6ab6dce18,
  title = {Mesoproterozoic rapakivi granites of the Rondonia Tin Province, southwestern border of the Amazonian craton, Brazil-I. Reconnaissance U-Pb geochronology and regional implications},
  author = {Jorge S. Bettencourt and R. M. Tosdal and W.B. Leite and B.L. Payolla},
  year = {1999},
  doi = {10.1016/s0301-9268(98)00126-0},
  url = {https://pubs.usgs.gov/publication/70021758},
  note = {Source identifier: 70021758}
}