Radiocarbon dating belfast
Ron Reimer and Professor Emeritus Mike Baillie from Queen's School of Geography, Archaeology and Palaeoecology also contributed to the work. "Archaeological 'time machine' greatly improves accuracy of early radiocarbon dating." Science Daily. "Everything which has come down to us from heathendom is wrapped in a thick fog; it belongs to a space of time we cannot measure.Most experts consider the technical limit of radiocarbon dating to be about 50,000 years, after which there is too little carbon-14 left to measure accurately with present day technology. The project was led by Queen's University Belfast through a National Environment Research Centre (NERC) funded research grant to Dr Paula Reimer and Professor Gerry Mc Cormac from the Centre for Climate, the Environment and Chronology (14CHRONO) at Queen's and statisticians at the University of Sheffield. Thus, one carbon 14 atom exists in nature for every 1,000,000,000,000 C12 atoms in living material.The radiocarbon method is based on the rate of decay of the radioactive or unstable carbon isotope 14 (14C), which is formed in the upper atmosphere through the effect of cosmic ray neutrons upon nitrogen 14.
Renfrew (1973) called it 'the radiocarbon revolution' in describing its impact upon the human sciences.
There are three principal isotopes of carbon which occur naturally - C12, C13 (both stable) and C14 (unstable or radioactive).
These isotopes are present in the following amounts C12 - 98.89%, C13 - 1.11% and C14 - 0.00000000010%.
It could help research issues including the effect of climate change on human adaption and migrations.
The curve called INTCAL09, has just been published in the journal .