A further example from a lava flow off the coast of hawaii shows similar discrepancies if dated with the carbon14 method the flow appears to be less than 17000 years old but dating with the potassium argon method gives dates of 160000 to 43 million years.
How radiometric dating works in general radioactive elements decay gradually into other elements the original element is called the parent and the result of.
How do we know how old a fossil is we use carbon as every living being has carbon carbon dating also known as radiocarbon dating is a method of estimating the age of carbonbearing materials up to 60000 years old.
radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon in which trace radioactive impurities were selectively incorporated when they were formed the method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products which form at a known constant rate of decay.
carbon dating is used to determine the age of biological artifacts up to 50000 years old this technique is widely used on recent artifacts but educators and students alike should note that this technique will not work on older fossils like those of the dinosaurs alleged to be millions of years old.
The following material has been taken from a sheet entitled several faulty assumptions are used in all radiometric dating methods carbon 14 is used for this example which was put out by dr hovind dr hovind r1 the atmospheric c14 is presently only 13 of the way to an equilibrium value.
How accurate is radiocarbon dating radiocarbon ages less than 3500 years old are probably accurate however before accepting any radiocarbon date one should know how the technique works its limitations and its assumptions.
radiocarbon dating its limitations and usefulness combining the effects of these two trees we see a site that was actually occupied for 245 years from 2095 to 1850 bce appearing using conventional radiocarbon dating to have been occupied for 30600 years from 40000 to 9400 bce.
In this article an overview is presented of the status of the radiocarbon dating of ironbased materials recent advances include simplification in sample preparation and reduction in sample size for accelerator mass spectrometry measurements and the potential use of rust as a viable source of material for radiocarbon dating.