fractionation techniques for dating - Carbon dating laboratories

Radiocarbon analyses are carried out at specialized laboratories around the world (see a list of labs at: When a biological organism dies, the radioactive carbon in its body begins to break down or decay.This process of decay occurs at a regular rate and can be measured.

carbon dating laboratories-1

Carbon dating laboratories

of Radio analytics of the Institute of Hygiene and Medical Ecology located at Kyiv, Ukraine offers conventional radiocarbon(C14) dating services.

It operate by benzene synthesis line and liquid scintillation counting based on Quantulus LSC.

After 11460 years, only a quarter remains, and so forth.

On the other hand, the atmosphere fixes carbon during photosynthesis, similar to the carbon cycle.

Regardless of the particular 14C technique used, the value of this tool for archaeology has clearly been appreciated.

Desmond Clark (1979:7) observed that without radiocarbon dating "we would still be foundering in a sea of imprecisions sometime bred of inspired guesswork but more often of imaginative speculation." And as Colin Renfrew (1973) aptly noted over 30 years ago, the "Radiocarbon Revolution" transformed how archaeologists could interpret the past and track cultural changes through a period in human history where we see among other things the massive migration of peoples settling virtually every major region of the world, the transition from hunting and gathering to more intensive forms of food production, and the rise of city-states.

Probably the most important factor to consider when using radiocarbon dating is if external factors, whether through artificial contamination, animal disturbance, or human negligence, contributed to any errors in the determinations.

For example, rootlet intrusion, soil type (e.g., limestone carbonates), and handling of the specimens in the field or lab (e.g., accidental introduction of tobacco ash, hair, or fibers) can all potentially affect the age of a sample.

The surrounding environment can also influence radiocarbon ages.

Tags: , ,