Data for: Silurian U-Pb zircon intrusive ages for the Red River anorthosite (northern Cape Breton Island): implications for the Laurentia-Avalonia boundary in Atlantic Canada

Cathodoluminescence images of the zircons from the Blair River anorthosite analyzed for in situ U/Pb geochronology. The number within each zircon corresponds to the spot location, beam size, and spot number (e.g. 01 corresponds to BRA01-01 in the Data table S1).