Carbon dating antiques
For example, C14 leaches at an accelerated rate from organic material saturated in water, especially saline water.
Results from radiocarbon dating said that they were 6000 years old.
These anomalies have driven archaeologists to question their earlier conclusions about archaeological sites and their respective civilizations founded on artefact dating.
This increases the C12 content and interferes with the carbon ratio.
The unreliability of carbon 14 date testing is a great concern to honest archaeologists.
There are three forms of carbon that naturally occur forming the building blocks of all plant and animal life.
Hi there, just a brief comment, you say: "(iron cannot be tested using C14)" and strictly speaking of course pure iron contains no carbon and thus cannot be dated by the C14 method.However if the iron contains carbon, and many types of iron such as wrought iron and steel and cast iron do indeed contain carbon, then the carbon can be extracted and dated by the C14 method.
The radiocarbon method measures the rate of decay in the C14 of organic matter therefore estimating how long ago death occurred.Fourthly, for C14 to test accurately the artefact must have been protected from contamination.Organic matter, being porous, can easily be contaminated by organic carbon in groundwater.Nitrogen atoms in the upper atmosphere are struck by cosmic radiation and create C14 atoms.These atoms rapidly decay into radiocarbon-dioxide and along with ordinary CO2 are absorbed by living plants.Thirdly, the environment in which the artefact lies heavily impacts on the rate of decay.