Assumptions to carbon 14 dating
Violations of this assumption can frequently be identified.Three additional assumptions are necessary in radiocarbon dating in order to estimate the initial concentration of C could be caused by changes in the intensity of the cosmic radiation or in the strength of the earth’s magnetic field.Violations in the atmosphere result from volcanic eruptions that occasionally add C.Also, there is a lag time for atmospheric mixing in the northern and southern hemispheres which results in somewhat different ages for the two hemispheres.The geophysical reservoirs include the atmosphere, the oceans, the biosphere, and the sediments.Violations of this assumption occur in the ocean reservoir due to the time required for mixing of surface waters with the deep layers.Carbon-14 dates usually appear to be reasonably accurate whenever they can be checked against historical records.
However, these excessively long ages are easily explained within the biblical worldview, and C should be present in specimens that are even a little more than 100,000 years old!
Carbon-14 dating cannot be applied to materials that have no C dates are less than that figure.
It is sometimes thought possible to extend the dating range a few half-lives, so one occasionally sees dates as old as 70,000 years or more.
It is widely used in dating fossils or archaeological samples containing organic material such as wood, charcoal, bone, shells, etc.
It is not used to date rocks or other inorganic material.