The following tables illustrate the highly questionable, if not totally unreliable, nature of the radiometric methods that are currently in use or have been used in the past to "date" volcanic materials. For the reasons discussed above, radiometric dating is not the absolute Time Clock that it has been portrayed to be by faithful evolutionists. 65,35) was not given, the ratios of Potassium -40 (K)/ Argon-40 (Ar) were listed in Table 1 on p. And though I agree with the writers of this article that this sample has an excess amount of Argon-40, I also think it is highly probable that the argon which contaminated this sample also contaminated all of the other samples, and that this breccia was simply "contaminated" with more Argon.
See the links below for more detailed information on this topic.
When scientists at the University of Regina, Saskatchewan were asked what the results would be if these roots were dated by Potassium Argon method.
Their response was that the results: Two well-documented examples of "heat contamination" are the 18 eruptions from two Hawaiian volcanoes.
With the exception of Carbon-14, radiometric dating is used to date either igneous or metamorphic rocks that contain radioactive elements such as uranium. Now when the uranium or thorium disintegrates, the alpha particles which are emitted are slowed down by the crystals in which the grains of the uranium- or thorium-bearing minerals are embedded.