How is radiactivedating performed

19 Oct

The survey of 1,000 American Protestant pastors, released Jan.

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For example, the 67 ( ) other methods of dating the earth, solar system, and/or universe. When a rock crystallises, the crystals of the minerals in the rock often enclose minute grains of other minerals which contain uranium and thorium.

Nor is it surprising that that pastors in the Northeast are most likely to strongly agree that God used evolution to create humans (25%) but pastors in the South are least likely to strongly agree (8%), or that education plays a role, with more highly educated pastors somewhat more favorable to an old earth and evolution in general.

Others results are more surprising – like the link between age and conviction on the age of the earth.

If, on the other hand, it is found that the radii vary, then this is proof that the half-life of that decay is not constant. This was first shown by Joly and Henderson who conducted most of the early studies on pleochroic haloes. We have solid evidence that radioactive decay rates cannot have been constant.

This proves that the half-lives of the uranium and thorium radioactive decays vary ... any age determination using this method of dating will be inaccurate because it is based on an invalid assumption." " ... For example, discordant dates have been obtained on the same rocks by the Given ample evidence observable in the present that decay rates have not been constant throughout the supposed deep time, it is not reasonable to assume they have been uniform through unobservable eons.