Some nuclides are naturally unstable. Compendium of chemical terminology, internet edition. This means that after approximately 4. By "age" we mean the elapsed time from when the mineral specimen was formed. This discussion is not meant to be an exact exposition of radiogenic age computation; the relation is mathematically more complicated than the direct proportion assumed for the illustration. Your Cart is Empty. Explore over 4, video courses.
What is Relative Age?
There are several methods of determining the actual or relative age of the earth's crust: Carbon, uranium, and potassium are just a few examples of elements used in radioactive dating. Email already in use. To learn more, visit our Earning Credit Page Transferring credit to the school of your choice Not sure what college you want to attend yet? Different methods of radiometric dating can be used to estimate the age of a variety of natural and even man-made materials. 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.