What is radiometric dating in geology

21-Aug-2017 21:22

Member III’s durability explains the remarkable preservation of the Sphinx’s face while the statue’s body has been ravaged by weathering.

what is radiometric dating in geology-24

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This is what archaeologists use to determine the age of human-made artifacts. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old.Other useful radioisotopes for radioactive dating include Uranium -235 (half-life = 704 million years), Uranium -238 (half-life = 4.5 billion years), Thorium-232 (half-life = 14 billion years) and Rubidium-87 (half-life = 49 billion years).

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