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The Earth: Yes, it really is 4.5 billion years old.
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- Dendrochronology
- Human Y-chromosomal ancestry
- Oxidizable carbon ratio dating
- Rock varnish
- Thermoluminescence dating
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- Coral
- Fission track dating
- Ice layering
- Lack of DNA in fossils
- Permafrost
- Weathering rinds
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- Amino acid racemization
- Baptistina asteroid family
- Continental drift
- Cosmogenic nuclide dating
- Erosion
- Geomagnetic reversals
- Impact craters
- Iron-manganese nodules
- Length of the prehistoric day
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- Milankovitch astronomical cycles
- Naica megacrystals
- Nitrogen in diamonds
- Petrified wood
- Relativistic jets
- Sedimentary varves
- Stalactites
- Space weathering
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- Distant starlight
- Helioseismology
- Lunar retreat
- Radioactive decay
Miscellaneous:
- See also
- External links
- Footnotes
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