The radiometric evidence for a 4. The basic theory of radiometric dating is briefly reviewed. Since the estimate for the age of the Earth has been based on the assumption that certain meteorite lead isotope ratios are equivalent to the primordial lead isotope ratios on Earth. In this assumption was shown to be highly questionable. Despite this, the momentum gained in the two decades prior to has made 4. Some evidence is also presented to show that radiometric results that are in agreement with the accepted geological time scale are selectively published in preference to those results that are not in agreement.
Lisle Oct 27, Geology , Origins , Physics. We are told that scientists use a technique called radiometric dating to measure the age of rocks. We are also told that this method very reliably and consistently yields ages of millions to billions of years, thereby establishing beyond question that the earth is immensely old — a concept known as deep time. This apparently contradicts the biblical record in which we read that God created in six days, with Adam being made on the sixth day. From the listed genealogies, the creation of the universe happened about years ago.
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Age of the Earth
In , shortly after the discovery of radioactivity , the American chemist Bertram Boltwood suggested that lead is one of the disintegration products of uranium, in which case the older a uranium-bearing mineral the greater should be its proportional part of lead. Analyzing specimens whose relative geologic ages were known, Boltwood found that the ratio of lead to uranium did indeed increase with age. After estimating the rate of this radioactive change, he calculated that the absolute ages of his specimens ranged from million to 2.
These same people say that science is important. Yet when asked why they reject all but the oldest science-based dating methods, the answer often given is that they think long-age radiometric dating is more reliable and that science settled the matter of the earth's age many years ago. What is less commonly known are any of the details of how the issue was settled: such as that the 4. And since this favored 'date' is the only one that's trumpeted by the media it is the only date that many assume to be correct.