Dictionary:Geologic age
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{{#category_index:G|geologic age}}
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.[1]
FIG. G-4. Geomagnetic polarity time scale showing the present polarity in black, reversed polarity in white. Magnetic anomaly numbers are also shown.[2]
References
External links
- See Appendix I