Carbon 14 dating controversy
And yet these studies […] may all be inaccurate since they are using the wrong radiocarbon information,” Manning said.
Furthermore, the ratio is known to fluctuate significantly over relatively short periods of time (e.g.
Sure enough, it showed that plant material in the southern Levant showed an average carbon offset of about 19 years compared with the current northern hemisphere standard calibration curve.
“There has been much debate for several decades among scholars arguing for different chronologies sometimes only decades to a century apart, each with major historical implications.
When news is announced on the discovery of an archaeological find, we often hear about how the age of the sample was determined using radiocarbon dating, otherwise simply known as carbon dating.
This carbon – which has an atomic mass of 14 – has a chance of losing that neutron to turn into a garden variety carbon isotope over a predictable amount of time.
By comparing the two categories of carbon in organic remains, archaeologists can judge how recently the organism that left them last absorbed carbon-14 out of its environment.
Over millennia the level of carbon-14 in the atmosphere changes, meaning measurements need to be calibrated against a chart that takes the atmospheric concentration into account, such as INTCAL13.
The current version of INTCAL13 is based on historical data from North America and Europe, and has a fairly broad resolution over thousands of years.
Additionally, we know that plants typically grow at different times in different parts of the northern hemisphere.