Question 17.5: A skull believed to belong to an early human being is found ......
A skull believed to belong to an early human being is found to have a carbon-14 content of 3.125 \% of that found in living organisms. How old is the skull?
Step-by-Step
Examine Table 17.3 to determine that a carbon- 14 content of 3.125 \% of that found in living organisms corresponds to an age of 28,650 years.
Table 17.3 Age of Object Based on Its Carbon-14 Content
| Concentration of C-14 (% Relative to Living Organisms) |
Age of Object (yrs) |
| 100 | 0 |
| 50 | 5,730 |
| 25 | 11,460 |
| 12.5 | 17,190 |
| 6.25 | 22,920 |
| 3.125 | 28,650 |
| 1.563 | 34,380 |
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