Radiometric Dating and the Geological Time Scale Radiometric Dating and the Geological Time Scale

Problems with radiometric dating, geologic processes as absolute chronometers

So even if the crystal excludes the daughter element, it could be present in impurities.

Radiometric Dating | The Institute for Creation Research

Because of this, the uranium, and its contribution to the thorium abundance, can in many cases be ignored in sediments. The same applies to all nucleii, implying that one could get the appearance of age quickly. Closed System It is assumed that we are dealing with a closed system—no loss of either parent or daughter elements has occurred since the study material formed.

In addition to yearly layering, individual strong events such as large-scale volcanic eruptions can be observed and correlated between ice cores.

Nonradiometric dating

This feature is beautifully seen in the seasonal progression of plant microfossils found in shales at Oensingen, Switz.

As for K-Ar dating, here is a quote given above: Other factors and basic assumptions must also be considered.

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Complete reversals of the north and south magnetic poles have occurred many times over geologic history. How do we know none of the parent or daughter isotope was added or removed?

These isotope ratios are sensitive to the temperature at the time they fell as snow from the clouds. Each of them is a testable hypothesis about the relationships between rock units and their characteristics.

The heavy isotope is lower in abundance during the colder winter snows than it is in snow falling in spring and summer. They would all have excess argon due to this movement. A critique of conventional geologic time scale should address the best and most consistent data available, and explain it with an alternative interpretation, because that is the data that actually matters to the current understanding of geologic time.

This of course means that the result is no longer anomalous, because the geologic period has been modified to fit the date. If such [excessive] ages as mentioned above are obtained for pillow lavas, how are those from deep-sea drilling out in the Atlantic where sea-floor spreading is supposed to be occurring?

The rate of radioactive decay is known and has been constant since the rock formed. These seasonal layers can be counted just like tree rings. This assumption is backed by numerous scientific studies and is relatively sound.

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This may be explained by the different parent atoms having decayed at different rates in the past—an explanation not allowed by evolutionists. We can also consider the average abundance of argon in the crust. Because these dates are based on methods with multiple assumptions, and are contrary to the Bible, we must reject that they are accurate.

The dates must be inferred based on assumptions about the ratios.

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The bottom panel shows the offset in uncalibrated ages caused by this change in atmospheric composition. Also, the diffusion of argon in cracks and channels of a mineral is likely much less temperature-dependent than diffusion through unbroken regions of the mineral, since diffusion through cracks and channels simply involves jumps through the air.

A schematic representation of the uranium decay chain, showing the longest-lived nuclides. However, this causes a problem for those who believe based on the Bible that life has only existed on the earth for a few thousand years, since fossils are found in rocks that are dated to be over million years old by radiometric methods, and some fossils are found in rocks that are dated to be billions of years old.

The RATE group has also documented carbon in coal and diamonds that are supposed to be millions to billions of years old.