Brief history carbon dating dating ariane alternatives
In 2008 we could only calibrate radiocarbon dates until 26,000 years.
Now the curve extends (tentatively) to 50,000 years.
From these records a “calibration curve” can be built (see figure 2, below).
The barbarians of the north were capable of designing complex structures similar to those in the classical world.
These new techniques can have a dramatic effect on chronologies.
With the development of a new method of cleaning charcoal called ABOx-SC, Michael Bird helped to push back the date of arrival of the first humans in Australia by more than 10,000 years.
If 1% of the carbon in a 50,000 year old sample is from a modern contaminant, the sample will be dated to around 40,000 years.
Because of this, radiocarbon chemists are continually developing new methods to more effectively clean materials.
Moving away from techniques, the most exciting thing about radiocarbon is what it reveals about our past and the world we live in.