14c dating of fossils
But studies have showed a slight fluctuation in this ratio over the millennia and hence there is a possibility and consequent discrepancy in calculation too (Currie).
Another limitation is the difficulty in estimating the age of things which are older than 50000 years as the amount of C-14 in such samples become absolutely undetectable due to complete decay. F Herzog 60) conducted with the help of mass spectrometer have increased the range of the technique up to 100000 years (Nave).
Conclusion Despite all the limitations radio carbon dating will remain as a significant tool for archaeologist around the globe to compare and understand the evolution of human culture and civilization. Thus undoubtedly radiocarbon dating remains one of the significant tools for the archaeologist to explain the evolution and cultural emergence in a more accurate manner.
Advancements in this field like accelerator techniques of carbon-14 dating (C.
Radiocarbon Dating in Archeology The science of archaeology has undeniably enriched mankind’s history and has helped to quench the quest to understand our past cultures in a better way.
Understanding the age and period of existence of the excavated fossils and other organic objects will help the archaeologist to unravel human history and evolution in a scrupulous manner (Taylor 24).
Researchers from the field of Physics have discovered that radioactive molecules are unstable and they undergo decay to attain a stable structure at a specific rate which is directly determined by the atomic number and mass of the decaying atom (Polach, H. The isotope of carbon thus produced is radioactive and it will undergo decay at a constant rate (Berger and H. The carbon isotope is also absorbed during photosynthesis by plants and reaches animal body when they consume plant parts. The carbon dating technique takes the assumption that all livings have fairly same percentage of 14C isotope in their body and also that the ratio of carbon-12 to carbon -14 present in the biosphere and inside the living plants and animals remain constant. “The Remarkable Metrological History Of Radiocarbon Dating [II].” Journal of Research of the National Institute of Standards and Technology 109.2 (2004): 185-217 Higham, Thomas. After the death of the organism the carbon intake is stopped. This data will help the scientists to relationship of Nitrogen-14 and Carbon-14 atom and can be used to predict the age of the artifact directly. Limitations This method assumes that the ratio of C-14 to C-12 in the atmosphere and in the living organism will be a constant.