FIG. A-5. Radioactive age dating. (a) Some naturally radioactive elements. (b) Applications to dating various rock types and ages. Italicized methods are often applicable to metamorphic uplift dating as opposed to magmatic crystallization dating.
FIG. G-4. Geomagnetic polarity time scale showing the present polarity in black, reversed polarity in white. Magnetic anomaly numbers are also shown.
- Doyle, P. and Bennett, M. R., 1998, Unlocking the Stratigraphical Record: John Wiley & Sons, p. 353 and 380
- Cox, A., 1982, Magnetostratigraphic time scale. In a Geologic Time Scale: Cambridge Univ. Press Cambridge, p. 63-84
- See Appendix I