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Human Evolution And The Fossil Record
Essay specific features
Written by:
Evelyn G
Date added:
July 25, 2016
Level:
University
Grade:
A
No of pages / words:
7 / 1782
Was viewed:
10233 times
Rating of current essay:
Essay content:
In
the study of hominid evolution, two main methods of dating are used: carbon-14
and potassium-argon dating. Carbon-14 dating involves the decay of radioactive
C-14, which has a half life of 5770 years. This makes this method useful for
dating of recent fossils, with good accuracy, up to 50,000 years back...
displayed 300 characters
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Carbon-14 dating involves the decay of radioactive
C-14, which has a half life of 5770 years. This makes this method useful for
dating of recent fossils, with good accuracy, up to 50,000 years back. After
5770 years, half of the carbon-14 in a fossil decays to nitrogen-14. Since the
ratio of carbon-12 to carbon-14 in a living organism remains the same as in the
environment around them because the organism constantly eats and replenishes it,
if it were to die, the ratio would change greatly after many years...
displayed 300 characters
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