Unreliability of Radiometric Dating and Old Age of the Earth Unreliability of Radiometric Dating and Old Age of the Earth

What are the types of radiometric dating, what you will learn

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Rocks from deeper in the crust would show this to a lesser degree. All of these layers can be explained within the Flood model as catastrophic melting and drainage events deposited many layers over a short period of time during localized residual catastrophism in the immediate aftermath of the Flood.

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To get to that point, there is also a historical discussion and description of non-radiometric dating methods. Prior to the availability of radiometric dating, and even prior to evolutionary theory, the Earth was estimated to be at least hundreds of millions of years old see above.

As a test, Von Weizsacker suggested looking for excess 40Ar in older K-bearing rocks. The same is true of coal which was supposedly deposited hundreds of millions of years ago, according to the evolutionary model.

A Response to “Scientific” Creationism

Thus any method based on simple parent to daughter ratios such as Rb-Sr dating is bound to be unreliable, since there would have to be a lot of the daughter product in the magma already. Added atmospheric argon can be detected, because the ratio of argon 40 to argon 36 for atmospheric argon is 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.

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Let me briefly comment on a couple of other articles at Tim Thompson's page. Byit was found to be 1. Imagine a uranium nucleus forming by the fusion of smaller nucleii.

But argon does not need to move through all rock in order to influence radiometric dates, it only has to reach ancient lava flows. The branching ratio that is often used is 0.

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To get one part in 10 million of argon in a rock in a thousand years, we would only need to get one part in 10 billion entering the rock each year. Argon is about 3. This was true at a regional, and even a global scale.

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The major problem with the first assumption is that there is no way to prove that the decay rate was not different at some point in the past.

The study by Funkhouser and Naughton 51 was on the xenoliths, not on the lava. Thus modern lava flows are not subject to the same mechanism of artificial increases in their K-Ar ages as are ancient ones. Geologists often say that the percentage of anomalies is low.

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The decay constants used in the calculations were the same as those in use throughout the world in A Creationist Assessment of Human Fossils. For example, dates may be accepted even when there is evidence of weathering, and rejected when there is not.

This section is important because it places a limit on the youngest age for a specific ammonite shell -- Baculites reesidei -- which is used as a zonal fossil in western North America.

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These two independent and agreeing dating methods for of the age of two primary members of the solar system formed a strong case for the correctness of his answer within the scientific community. Scientists use a mix of observational data and assumptions about the past to determine the radiometric age of a rock.

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Look again at the isochron for the meteorite Juvinas Figure 3.