Whitehead, James Supplemental material: <sup>40</sup>Ar/<sup>39</sup>Ar Age Constraints on Taconian and Acadian Events in the Quebec Appalachians GSA Data Repository Item 9621, Geology, Vol. 24, p. 359. File size: 5 p., about 173 K bytes. Geoscience 1996-01-01
    https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_sup_40_sup_Ar_sup_39_sup_Ar_Age_Constraints_on_Taconian_and_Acadian_Events_in_the_Quebec_Appalachians/12335753
10.1130/9621