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TeachMeFinance.com - explain radioactive dating (radiometric dating) radioactive dating (radiometric dating) The term 'radioactive dating (radiometric dating)' as it applies to the area of coastlines can be defined as ' the most reliable method of obtaining a 'date' for a rock depends upon the observation that the rate of decay of a radioactive element is a constant. the earliest methods, using uranium and thorium minerals as the starting material, yielded evidence that the extent of geological time was at least 2 million years. the development of knowledge concerning radioactive processes since 1939 has made available a number of refined techniques for radioactive dating which are nowadays routine processes'. Previous 5 Terms: Radio Frequency (RF) Heating radio spectrum radio wave radioactive Radioactive contamination Next 5 Terms: Radioactive decay Radioactive series Radioactive waste Radioactivity Radiofacsimile About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.