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Radiometric Dating Simply Explained
I'm not speaking of evidences based on erosion or the lack of it, or other kinds of evidence, but rather on evidences relating to the radiometric dates and the concenrations of isotopes themselves. In one specific case, samples were taken from the Cardenas Basalt, which is among the oldest strata in the eastern Grand Canyon. There is also evidence that many anomalies are never reported. When we understand the science, we find that radiometric dating actually confirms the biblical account of history. People should read John Woodmorappe's articles on radiometric dating to see some of the anomalies. Potassium—argon dating This involves electron capture or positron decay of potassium to argon To do this, scientists use the main isotope of carbon, called carbon 12C. All three of these assumptions can affect our time calculations. We know they do because of the aforementioned tests on rocks whose origins were observed. This makes carbon an ideal dating method to date the age of bones or the remains of an organism. RATE Years ago, a group of creation scientists set out to explore the question of why radiometric dating methods give inflated age estimates. The answer has to do with the exponential nature of radioactive decay. The releases of carbon dioxide into the biosphere as a consequence of industrialization have also depressed the proportion of carbon by a few percent; conversely, the amount of carbon was increased by above-ground nuclear bomb tests that were conducted into the early s. This can and must be tested. Due to some published anomalies, I don't think we know that they have any clear relationship to the assumed dates.
Thus radium is decaying 3 million times as fast as U This is how geologists explain away the old isochron at the top of the Grand Canyon. Interestingly, many fossils of plants and animals often contain some of the original material of the organism — including carbon. It doesn't matter if these minerals are relatively lighter than others. Carbon is a radioactive isotope of carbon, with a half-life of 5, years,   which is very short compared with the above isotopes and decays into nitrogen. This has been done for the "Methuselah of trees", the bristlecone pine trees, which grow very slowly and live up to 6, years. None of these early faster half-lives would be the same as they are today. These long time periods are computed by measuring the ratio of daughter to parent substance in a rock and inferring an age based on this ratio. I think we can build a strong case for fictitious ages in magmatic rocks as a result of fractional cystallization and geochemical processes. Uranium tends to stay dissolved in water, but thorium is insoluble in water. But lead is a metal, and to me it looks more likely that lead would concentrate along with the iron. All radiometric dating methods use scientific procedures in the present to interpret what has happened in the past. This calls the whole radiometric dating scheme into serious question. The youngest rocks gave a billion year age the same as the oldest rocks! Helens, Vulcanello, and Lipari and other volcanic sites. First let me note that there is a lot more going on than just mixing. So the usual methods for augmenting and depleting parent and daughter substances still work to influence the age of this isochron. I believe that the same considerations apply to concordia and discordia, but am not as familiar with them. Because cosmic rays constantly bombard meteorites flying through space, this method has long been used to date the ' flight time' of meteorites--that is the time from when they were chipped off a larger body like an asteroid to the time they land on Earth. A particular isotope of a particular element is called a nuclide. The age estimate could be wrong by a factor of hundreds of thousands. Consequently, fractional crystallization can produce igneous rocks having a wide range of compositions. As lava rises through the crust, it will heat up surrounding rock. However, this method has different assumptions about starting conditions and can give incorrect dates. Such a distribution would give the appearance of age. Chemical fractionation, as we have seen, calls radiometric dates into question. A pioneering investigation into the crystallization of magma was carried out by N.
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