The basics of radiometric dating By measuring the relative amounts of certain radioactive elements or their derivatives in meteorites, astronomers have been able to radiometric dating sand the timeline for the evolution of our solar system. Radiometric dating is often compared to the measurement of time by an hourglass.
For an hourglass, the relative amounts of sand on top and bottom give a pretty good estimate of how much time has passed. Similar logic is used with radiometric dating. An unstable parent element top sand is transformed into a daughter element bottom sand.
Luminescence dating refers to a group of methods of determining how long ago mineral grains This is usually, but not always, the case with aeolian deposits, such as sand dunes and loess, and the OSL dating method is superior to the radiocarbon dating method, as it eliminates a common 'old-carbon' error problem. Radiometric dating is often used to “prove” rocks are millions of years old. In an hourglass, grains of fine sand fall at a steady rate from the top. Using relative and radiometric dating methods, geologists are able to answer to measure the amount of radioactivity accumulated by crystals in sand grains or.