The dating process

C-12 and C-13 are stable but C-14 decays at a known rate, with a half-life of 5,568 years.University of Leicester archaeologists took four small samples from one of the ribs of the Greyfriars skeleton and sent them to two specialist units with the facilities to analyse them: the Scottish Universities Environmental Research Centre (SUERC) at the University of Glasgow, and the Oxford Radiocarbon Accelerator Unit, part of the University of Oxford’s Research Laboratory for Archaeology and the History of Art.

the dating process-63

The dating process

How old are the bones found under the Greyfriars church?

Clearly they can’t be any more recent than the Dissolution of 1538.

The SUERC results showed a 95% probability that the bone samples dated from around AD1430-1460, and over in Oxford the results both came out at around AD1412-1449, again with a 95% confidence. Radiocarbon dating of marine organisms can be out by up to several hundred years, and this effect can occur to a lesser degree in terrestrial life where sea-food forms part of the diet.

The mass spectrometry of the Greyfriars bone samples reveals that the individual in question had a high-protein diet including a significant proportion of seafood.

Each product has been designed with a high level of powerful detail in order for you to obtain fast results.

Comments