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Rdiometric dating

RADIOMETRIC DATING WORKS Geology observations about the relation between different rocks can give relative ages, but radiometric dating is the primary method for giving absolute ages. During a certain length of time called a half-life, half of the radioactive parent atoms in a sample decay to stable daughter atoms.

The natural occurrence of radioactive atoms thus seems to confirm the age of the solar system.

(3) Often several different parent-daughter pairs give concordant (similar) ages for a given rock or mineral.

In most cases, these rocks are not fossil-containing sedimentary rocks, but are volcanic, granitic, or metamorphic.

These inorganic methods date fossil material only by association and give ages of millions or billions of years.

Such large halos have been searched for, but no significant examples have been found.

(2) Many types of radioactive atoms are known, but all primordial ones have half-lives greater than 450 million years and none have half-lives less than that.

In one example from Saskatchewan in Canada, radiometric dates were determined for multiple samples from each of four minerals in a bentonite clay that was formed by the weathering of volcanic ash.

The rubidium-strontium, potassium-argon, and uranium-lead decay pairs all gave ages of 72.5±0.2 million years.

CREATIONIST RESPONSES First are several suggestions for young earth creationists studying radiometric dating: (a) work within the scientific community and use caution when making scientific claims; (b) work toward a constructive alternative model, more than just attacking existing models; (c) address the big picture, more than scattered discrete pieces of data; (d) don’t expect quick “silver bullet” proofs for the Bible; and (e) origins activities are one-time events, so don’t expect any origins research to fit a purely naturalistic scientific model.

Using the current understanding of radiometric dating, it is difficult to fit the data into a one-year flood a few thousand years ago; however, creationists have given a number of responses that are here divided into eight categories: (1) The radiometric age data is bad.

(a) The strong force that governs nuclear decay rates is several orders of magnitude greater than the electromagnetic force that governs atomic interactions at even the highest temperatures and pressures found on earth.