An igneous rock contains a radioactive Isotope that has a half life of 10 million years. Careful analysis shows that only one quarter of the original concentration of the parent isotope is left. How old is the igneous rock ?

An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter24: Geologic Time
Section: Chapter Questions
Problem 11MC: If the half-life of a radioactive specimen is 100 years, then how long will it take for the specimen...
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An igneous rock contains a radioactive Isotope that has a half life of 10 million years. Careful analysis shows that only one quarter of the original concentration of the parent isotope is left. How old is the igneous rock ?

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