@misc{indiciaed26fd2594f45,
  title = {Porphyry copper deposit tract definition - A global analysis comparing geologic map scales},
  author = {G. L. Raines and K.A. Connors and L.B. Chorlton},
  year = {2007},
  doi = {10.1007/s11053-007-9042-9},
  url = {https://pubs.usgs.gov/publication/70029843},
  note = {Source identifier: 70029843}
}