What are some problems with radiometric dating. Problem with Carbon 14 radiometric dating

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Radioactive dating problems

what are some problems with radiometric dating

Anyone have any ideas about this apparent anomaly with C14 in coal? The rates of exchange that would mess up the dates are very tiny. The conventional K-Ar dating method was applied to the 1986 dacite flow from the new lava dome at Mount St. The earth should have rotated more quickly in the distant past, meaning that a day would have been less than 24 hours, and there would have been more days per year. We now make some comments about dating the meteorites. This can also result in isochrons being inherited in the same way.

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Radioactive dating problems

what are some problems with radiometric dating

However, the U-Th-Pb method uses a different procedure that I have not examined and for which I have no data. It is not necessary for this increase in age to happen all at once; many events of this nature can gradually increase the K-Ar ages of rocks. It was claimed that carbon 14 levels were not considered at all in constructing this chronology. In addition, not all of the radon would be on the surface of the particles of uranium. Each assumption is a potential variable, the magnitude of which can seldom be ascertained. Because, any testing of any portion of the object would give the same results.

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Radiometric Dating Methods

what are some problems with radiometric dating

I suspect that a number of geologists now realize the implications of what they know about the lead and uranium content of subducted oceanic plate versus crustal material and the mechanics of magma solidification. Geologists often say that ages that are too old are due to excess argon. Geology contributing author Massimo Cortini cites a very interesting anomaly regarding the U 238 decay chain, which is U-238, U-234, Th-230, Ra-226, Rn-222, Po-218 Po-214, Po-210, Pb-210, Bi-210, Pb-206. Furthermore, Pro cites my sources incorrectly. Additionally, variations in uranium content within a sample can lead to large variations in fission track counts in different sections of the same sample. In addition, there is just one point on this isochron for all of the meteorites that do not contain uranium. For example, heavier substances will tend to sink to the bottom of a magma chamber.

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More Bad News for Radiometric Dating

what are some problems with radiometric dating

There are also processes taking place within a magma chamber that can cause differences in the composition of the magma from the top to the bottom of the chamber, since one might expect the temperature at the top to be cooler. We'll never relate to these concepts in the way we relate to everyday existence. Surely every believer must grant that God could accomplish His will by working solely through repeatable laws of nature. However, if the crust is enriched in lead or impoverished in uranium before the mixing, then the age of the isochron will be increased. If you don't, such dismissive arguments as 'the extra C14 could be due to uranium decay' leave enough wriggle room uncertainty for the creationist to thrive in. This is not necessarily a problem for radiometric dating, because it can be taken into account.

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The Radiometric Dating Game

what are some problems with radiometric dating

For each geologic period and each dating method, we will get a distribution of values. In addition, with each successive eruption, some gas would escape, reducing the pressure of the gas and reducing the apparent K-Ar radiometric age. This is significant because it is known that neutrinos do interact with the nucleii of atoms, and it is also believed that much of the energy of supernovae is carried away by neutrinos. I also question the assertion that argon, for example, is excluded from certain minerals when they crystallize and never enters later on. This is interesting, but it was not discussed at the meeting and I do not know how Justin would respond. This is formed when lava is sticky and bubbles of gas in it explode.

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Unreliability of Radiometric Dating and Old Age of the Earth

what are some problems with radiometric dating

This lava will take longer to cool down, giving more opportunity for enclosed argon to escape and leading to younger radiometric ages. Potassium is found to be very mobile under leaching conditions. How anyone can keep track of this all is a mystery to me, especially with the difficulties encountered in exploring magma chambers. In addition, the magma chamber would be expected to be cooler all around its borders, both at the top and the bottom as well as in the horizontal extremities, and these effects must also be taken into account. I believe that this will produce a good K-Ar isochron, but the age calculated will be meaningless.

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Radiometric dating problems

what are some problems with radiometric dating

And second, that no atoms of the daughter were present in the system when it formed. Interestingly enough, whole rock isochrons can be used as a test to see if the sample shows evidence of mixing. It seems to make the most sense, and on the basis of it we believe that this was a living, breathing group of dinosaurs destroyed in one catastrophic moment. This can happen, for example, if the earlier formed minerals are heavier than the liquid portion and settle to the bottom of the magma chamber as shown in Figure 3. Let us consider processes that could cause uranium and thorium to be incorporated into minerals with a high melting point. Some of the fossilized whales and dolphins also have preserved remains of skin outlines around the fossilized bones. Thus the physical principle of the method is well established.

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Radiometric Dating Methods

what are some problems with radiometric dating

Clocks tied to the Earth's rotational energy lack the precision of isotopic dating methods, and they are only applicable to a small number of formations which have excellent preservation of fairly small details. Gerling et al called attention to some chlorites yielding K-Ar dates of 7 to 15 b. Perhaps, if these rocks were in fact closed systems and were not subject to contamination by external argon. People should read John Woodmorappe's articles on radiometric dating to see some of the anomalies. As time passed, this Ar40 would gradually pass into the atmosphere, reducing this effect and making rocks appear younger.

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Problem with Carbon 14 radiometric dating

what are some problems with radiometric dating

Another of my graduate students gave a seminar to the lab on dendrochronology of fossil trees and had ample opportunity to analyze the procedures there, and to work with Ferguson for a while. However, he writes in the scientific literature he accepts the accuracy of the standard scientific dating methods. Radio carbon dated at 890 years old! First, I would like to point out some errors my opponent made in his last response. Uniformitarians assume magmas crystallized slowly over millions of years under conditions of thermodynamic equilibrium. Then the partial pressure of argon 40 in the magma will never decrease below p; excess argon 40 will remain dissolved in the lava or magma as it cools. You calculate that the hose must have been running for 30 hours. Fractionation followed by mixing can create isochrons giving too old ages, without any fractionation of daughter isotopes taking place.

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