Radiocarbon dating stuff works Free dirty sex chat rooms
Ironically, archaeological bones are among the most difficult objects to date accurately.
This is because bone is a composite material that includes both .
This method also works on some inorganic compounds, as long as they also assimilated carbon-14 during their formation.
Libby confirmed the accuracy of radiocarbon dating by comparing his results with the known age of tree ring samples.
The alternating layers of dark and light count the years like tree rings. tune a technique called carbon-14 dating, which is used to pin down dates for artifacts tens of thousands of years old. van der Plicht, "Atmospheric Radiocarbon Calibration to 45,000 yr B.
" don't know if this is still out there]Anyway, I got the Science article to see what they were talking about. P.: Late Glacial Fluctuations and Cosmogenic Isotope Production," Science 279(1998):1187-1190 and the picture below comes from that paper.
When an organism dies, it stops absorbing carbon-14, which then begins to decay.