Isochron dating site

Yet most people really don’t know much about these radioactive dating methods.So slick and convincing are the presentations of results, particularly in glossy media and museum propaganda, that no one even bothers to question how these dating methods work, what assumptions are involved, and how reliable they are. The answers are not only instructive, but demolish the evolutionary geologist’s case for a 4.5-billion-year old earth.Furthermore, by interpretation of these graphs they often claim to be able to quantify the loss or gain and thus overcome this difficulty to still ‘read’ the radioactive ‘clock’.However, once again this interpretation to overcome this problem of the invalidated closed-system assumption cannot be proved, but is merely assumed to be correct because it makes the radioactive ‘clock’ work.Thus the first step in the radioactive dating technique is to measure the amounts of the parent and daughter elements (isotopes) in a rock sample via chemical analyses.This is done in specially equipped laboratories with sophisticated instruments capable of very good precision and accuracy, so in general there is no quarrel with the resulting chemical analyses.

Furthermore, even if today’s scientists believe they have the methods, for example graphical and mathematical, for determining how much of the daughter isotope might have been present either at the origin of the earth or the origin of the rock being dated, no one can ever be sure that these ‘answers’ are correct, because there was no scientist present at the beginning to observe those initial conditions, even though the scientists’ calculations may be extremely logical.

Now this ‘clock’ works because the initial conditions are known—that is, all the sand grains are in the top glass bowl and none are in the bottom one.

If there is already some sand in the bottom glass bowl, then unless this amount is known the hourglass ‘clock’ cannot ‘tell’ the time.

The big surprise is that the attack has come from an evolutionary geologist and has been published in a secular scientific journal! First, let’ s find out how radioactive dating methods are supposed to work.

Some types (technically known as ‘isotopes’) of ‘parent’ elements such as uranium, thorium, potassium and rubidium are said to be radioactive because the nuclei of the atoms are unstable, resulting in readjustments between the ‘particles’ (primarily neutrons and protons) in the nuclei with time.

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