Letter | Published:

Geochronology of eastern Newfoundland


WHOLE-ROCK Rb–Sr isochrons from granitoid rocks intruded into the easternmost part of the Central Mobile Belt and the Avalon Platform of Newfoundland indicate that the bulk of the plutonic activity took place during Devonian and Carboniferous times. Of the nine intrusions that were dated, only one, a Cambrian granite from the Avalon Platform, was significantly older.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Kay, M., Bull. Am. Assoc. petrol. Geol., 51, 579–600 (1967).

  2. 2

    Williams, H., Am. J. Sci., 262, 1137–1158 (1964).

  3. 3

    Kay, M., and Colbert, E. H., Stratigraphy and Life History (Wiley, New York, 1965).

  4. 4

    Williams, H., Kennedy, M. J., and Neale, E. R. W., Geol. Assoc. Canada, Spec. Paper 11, 181–261 (1972).

  5. 5

    Bird, J. M., and Dewey, J. F., Bull. geol. Soc. Am., 81, 1031–1060 (1970).

  6. 6

    Dewey, J. F., and Bird, J. M., J. geophys. Res., 76, 3179–3207 (1971).

  7. 7

    Kennedy, M. J., and McGonigal, M. H., Can. J. Earth Sci., 9, 452–459 (1972).

  8. 8

    Brooks, C., Hart, S. R., and Wendt, I., Revs. Geophys. Space Phys., 10, 551–577 (1972).

  9. 9

    Strong, D. F., Dickson, W. L., O'Driscoll, C. F., Kean, B. F., and Stevens, R. K., Nature, 248, 37–39 (1974).

  10. 10

    Strong, D. F., Dickson, W. L., O'Driscoll, C. F., and Kean, B. F., Rept 74-3 (Newfoundland Dept Mines and Energy, 1974).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.