@misc{indiciae7f8e1e8befbf,
  title = {SHRIMP U-Pb zircon ages for Big Creek gneiss, Wyoming and Boulder Creek batholith, Colorado: Implications for timing of Paleoproterozoic accretion of the northern Colorado province},
  author = {Wayne R. Premo and C. Mark Fanning},
  year = {2000},
  doi = {10.2113/35.1.31},
  url = {https://pubs.usgs.gov/publication/70209576},
  note = {Source identifier: 70209576}
}