Radiometric dating methods accuracy
This is the amount of time it takes for half of the radioactive material to decay.So, after a period of time equal to the half-life, half the radioactive material would be left in the sample.Bosch used, and assumed the accepted "normal" decay rate, then we would think it took a billion times longer for the radioactive material in that sample to decay to the amount which we measured, instead of the short time which it actually took to decay down to that amount.Can you see the implication of this for the radiometric dating that has been used "across the board" in science?However, high pressure has been found to change the decay rate for some isotopes.Accessed 2011 February 23" href="#footnote2_pan5eo3"2, 3 Why would this work?When quartz is placed under pressure, there is a voltage produced.Under tension, the opposite of compression, there is also a voltage produced, with a reversed polarity.
If we assume decay occurs slowly, then it takes a long time; but, on the other hand, if the decay goes swiftly, it doesn't take as long.Let's look at how the radiometric dating method works.Over time, a certain amount of radioactive material decays.By measuring the amount of radioactive material left in a sample, and assuming we also know the amount of radioactive material in the sample originally, one can theoretically deduce the amount of time that would be required for the original amount to decay down to the currently measured amount.
Various radiometric dating methods have one thing in common - they assume a constant radioactive decay rate (of the material being used in the dating). Another assumption is the starting amount of radioactive material in the sample, but for now we will focus on the rate assumption.An alpha particle is simply a helium nucleus, which will quickly gather up 2 electrons and become a helium atom.(Electrons are quickly accumulated when you rub a balloon on some material - perhaps your hair - and then place the balloon on a wall or ceiling.This implies the age of the material could be vastly younger than the measurement may seem to indicate!