TY  - RPRT
TI  - U-Pb zircon date from Avalonian Cape Breton Island and geochronologic calibration of the early Ordovician
AU  - E. Landing
AU  - S. A. Bowring
AU  - R.A. Fortey
AU  - K.L. Davidek
PY  - 1997
DO  - 10.1139/e17-059
UR  - https://pubs.usgs.gov/publication/70019793
ID  - 70019793
ER  -