Radioisotopic dating method currently used


This implies the earth is at least 20 million years old.



Similarly, annual lake sediments can be used to estimate relative age and conventional interpretation for the Green River varves suggests they have been formed over some 20 million years.In other words, half of the radioactive isotope in a sample would have decayed to Nitrogen-14 (N-14) in just 5,730 years.C-14 dating of carbon-bearing materials is therefore limited to roughly 50,000 years.And OE Christians (theistic evolutionists) see no problem with this dating whilst still accepting biblical creation, see Radiometric Dating - A Christian Perspective.

This is the crucial point: it is claimed by some that an old earth supports evolutionary theory and by implication removes the need for biblical creation.

This challenge is mainly headed by Creationism which teaches a young-earth (YE) theory.