What is coral dating
Many dating methods seem to give about the same ages on meteorites.Thus radiometric dating methods appear to give evidence that the earth and meteorites are old, if one accepts the fact that decay rates have been constant.Uranium decays to lead by a complex series of steps. Thus we obtain K-Ar dating, U-Pb dating, and Rb-Sr dating, three of the most common methods.When it is stated that these methods are accurate to one or two percent, it does not mean that the computed age is within one or two percent of the correct age.Then read your FREE Compatibility profile® and meet Cape Coral singles that are truly right for you.How radiometric dating works in general Why methods in general are inaccurate Why K-Ar dating is inaccurate The branching ratio problem How Errors Can Account for the Observed Dates Why older dates would be found lower in the geologic column especially for K-Ar dating Do different methods agree with each other on the geologic column?Even the creationist accounts that I have read do not adequately treat these issues.At the start, let me clarify that my main concern is not the age of the earth, the moon, or the solar system, but rather the age of life, that is, how long has life existed on earth.
Back to top Radioactive elements decay gradually into other elements.
In general, in one half-life, half of the parent will have decayed.
In two half-lives, half of the remainder will decay, meaning 3/4 in all will have decayed.
Potassium is present in most geological materials, making potassium-argon dating highly useful if it really works.
Potassium is about 1/40 of the earth's crust, and about 1/10,000 of the potassium is potassium 40.