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Using uranium 238 in radiometric dating

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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.

The geological time scale and an age for the Earth of 4.5 b.y.

Despite this, the momentum gained in the two decades prior to 1972 has made 4.5 b.y.

a popularly accepted “universal constant” even though the foundations on which it was based have been virtually removed.

This would be the estimated age of the earliest life or fossils. Uranium 238 is only found igneous or volcanic rocks. Because of the huge differences in the half lives of Carbon 14 and Uranium238 that cannot be used together.

Carbon 14 can only be used to date fossils of a very recent age.

Lava (properly called magma before it erupts) fills large underground chambers called magma chambers.

Most people are not aware of the many processes that take place in lava before it erupts and as it solidifies, processes that can have a tremendous influence on daughter to parent ratios.

Radiometric dating is largely done on rock that has formed from solidified lava.The question should be whether or not carbon-14 can be used to date any artifacts at all? There are a few categories of artifacts that can be dated using carbon-14; however, they cannot be more 50,000 years old.Carbon-14 cannot be used to date biological artifacts of organisms that did not get their carbon dioxide from the air.magazine has been continuously published since 1978, we are publishing some of the articles from the archives for historical interest, such as this.For teaching and sharing purposes, readers are advised to supplement these historic articles with more up-to-date ones suggested in the Related Articles and Further Reading below.Before 1955, ages for the Earth based on uranium/thorium/lead ratios were generally about a billion years younger than the currently popular 4.5 billion years. old Earth is reviewed and deficiencies of the uranium/lead method are discussed.