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Radiometric dating is the term for a method to determine the age of an object based on the concentration of a particular radioactive isotope contained within it. The specimens must contain a very long-lived radioisotope of known half-life time taken for one half job match making its nuclei to decaywhich, with a measurement of the ratio of radioisotope to a stable isotope usually the decay productgives the age.

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Radioactive Dating and the Use of Isotopes

Earning College Credit Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2, colleges and universities. However, rocks and other objects in nature do not give off such obvious clues about how long they have been around. Merge this question into. Homework Help Resource College Biology: Early methods relied on uranium and thorium minerals, but potassium—argon, rubidium—strontium, samarium—neodymium, and carbon—carbon are now of considerable importance.

radiometric dating

Compare radiometric dating, radioactive decay and half-life Understand that uranium-lead dating is one of the most reliable radiometric dating methods Relate the processes of potassium-argon and rubidium-strontium dating Determine how radiocarbon dating works and recognize why it is important. Print this article Print all entries for this topic Cite this article.

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Was this answer useful? Similarly, relative dating is done by paleontologists who find layers of fossils.

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Find a importance of radioactive dating that fits your goals. Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2, colleges and universities.

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Taking K-Ar as an example, the sampl … e must be selected from a rock believed to be representative of the geological process being investigated. What is your educational goal?

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Are you a teacher? Uranium-Lead Dating There are different methods of radiometric dating that will vary due to the type of material that is being dated.

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DNA Replication - Processes and Prentice Hall Earth Science: Radiometric dating is one type of absolute dating. Organize and share selected lessons with your class. That's a lot of years.