Methods other than carbon dating

Elements can be transported into a sample or leach out of a sample.Scientists will reject theories about the age of the earth that do not conform to the norm.Help us reduce the maintenance cost of our online services.Because your computer is running an older version of internet browser, it no longer meets the features of modern websites.This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks. Some do not change with time and form stable isotopes (i.e.those that form during chemical reactions without breaking down).A further example from a lava flow off the coast of Hawaii shows similar discrepancies.If dated with the carbon-14 method, the flow appears to be less than 17,000 years old, but dating with the potassium argon method gives dates of 160,000 to 43 million years.

d) Even if the rate of decay is constant, without knowledge of the exact ratio of carbon-12 to carbon-14in the initial sample, the dating technique is subject to question.Evolutionists assume that the rate of cosmic bombardment of the atmosphere has always remained constant and that the rate of decay has remained constant.Scientists place great faith in this dating method, and yet more than 50% of radiocarbon dates from geological and archaeological samples of northeastern North America have been deemed unacceptable after investigation.They will argue that the clock was not reset if the age is too old, or that isotopes were selectively removed if the age turns out to be too young.In the study on the Hawaii lava flow cited above, it was argued that entrapment of excessive amounts of argon gas had made the samples appear older than they were.

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It's assumed that the clock was set to zero when the study material was formed.

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