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southeastside asked:


Yesterday there was news of a 3.3 million year old Australopithecus afarensis fossil from Ethiopia. I’m just curious as to how they ascertain the age. I know it’s not carbon-14 dating, that’s 2 orders of magnitude beyond its range. It’s been a while since I learned about this stuff, so thanks for refreshing my memory.

6 Responses to “Bulk Title Example
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1. Steve on March 2nd, 2009 6:41 pm

   The old fossils dont have picture there.

2. yscrk on March 6th, 2009 5:00 am

   Sending the Old fossil on a date with a Blonde, Brunette and a red head – he may react to one of them

3. tbom_01 on March 6th, 2009 3:04 pm

   Dating httpenwikipediaorgwikicosmogenic_isotopeapplications_in_geology_listed_by_isotope.

4. Corey M on March 9th, 2009 12:15 pm

   Dating using certian elements such as carbon14 scientists are able to figure out how old.
   Dating using certian elements such as carbon14 scientists are able to figure out how old fossil was.

5. Roy on March 10th, 2009 11:45 pm

   The article below may help.
   The decay of carbon 14 is only 15000 years or so for example how uranium decays into lead the half life of carbon the article below may help.

6. bootleg on March 13th, 2009 6:05 pm

   check it out on

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