Although the half-life of rubidium is even longer than uranium 49 billion years or 10 times the age of the earthit is useful because it can be found in almost all igneous rocks. Just as in the example with uranium, scientists are able to determine the age of a sample by using the ratios of the daughter product compared to the parent. Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied. Earning College Credit Did you know… We have over college courses that prepare you to earn credit by exam that is accepted by over 1, colleges and universities. Radioactivity occurs when the nucleus contains an excess amount of neutrons. These differing rates of decay help make uranium-lead dating one of the most reliable methods of radiometric dating because they provide two different decay clocks.
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Your Cart is Empty. Rock Deformation and Mountain This method is also very limited because uranium is not found in every old rock. When the rate of decay of a radioactive substance is known, the age of a specimen can be determined from the relative proportions of the remaining radioactive material and the product of its decay. Radiocarbon dating is a method used to determine the age of organic material by measuring the radioactivity of its carbon content. Uranium-Lead Dating There are different methods of radiometric dating that will vary due to the type of material that is being dated. Earning College Credit Did you know… We have over college courses that prepare you to earn credit by exam that is accepted by over 1, colleges and universities.