@misc{indiciae45990c1e4147,
  title = {U-Pb ages of metarhyolites of the Catoctin and Mount Rogers formations, central and southern Appalachians: Evidence for two pulses of Iapetan rifting},
  author = {John N. Aleinikoff and Robert E. Zartman and Marianne Walter and Douglas W. Rankin and Peter T. Lyttle and William C. Burton},
  year = {1995},
  doi = {10.2475/ajs.295.4.428},
  url = {https://pubs.usgs.gov/publication/70019090},
  note = {Source identifier: 70019090}
}