Facts about radioactive dating

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Radioactivity

Generally, there are four main concepts that students struggle with when thinking about radioactive decay:. Radioactivity and radioactive decay are spontaneous processes. Students often struggle with this concept; therefore, it should be stressed that it is impossible to know exactly when each of the radioactive elements in a rock will decay. Statistical probablity is the only thing we can know exactly. Often students get bogged down in the fact that they don't "understand" how and why radioactive elements decay and miss the whole point of this exercise.

Here I want to concentrate on another source of error, namely, processes that take place within magma chambers. To me it has been a real eye opener to see all the processes that are taking place and their potential influence on radiometric dating. Radiometric dating is largely done on rock that has formed from solidified lava.

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This overview was written to help absolute beginners get started. Radioactive dating is the procedure of calculating an age for an artifact by determining how much of the radioactive material has decayed and calculating how long that would take given the half-life how long it takes for half the material to decay of the material being tested. Several dozen methods exist, using different radioactive isotopes and decay products, with varied dating ranges and precision. The procedure, however, is difficult, and many tests have shown that it can be inaccurate, and it is at times not even considered reliable by mainstream scientists. It is impossible to measure the age of something, except to time it as it actually occurs, so radioactive dating methods calculate the age, based on i measurements of quantities of specified materials, ii measurements of decay rates, and iii assumptions about the history of the sample. Suppose we have a tank partly filled with water , and a hole in the bottom through which the water is leaking out of the tank.

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Radiometric Dating Does Work!

Radiometric dating of rocks and minerals using naturally occurring, long-lived radioactive isotopes is troublesome for young-earth creationists because the techniques have provided overwhelming evidence of the antiquity of the earth and life. Some so-called creation scientists have attempted to show that radiometric dating does not work on theoretical grounds for example, Arndts and Overn ; Gill but such attempts invariably have fatal flaws see Dalrymple ; York and Dalrymple Other creationists have focused on instances in which radiometric dating seems to yield incorrect results. In most instances, these efforts are flawed because the authors have misunderstood or misrepresented the data they attempt to analyze for example, Woodmorappe ; Morris HM ; Morris JD

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