Radiometric dating of rocks ppt
The difference between relative dating and absolute dating is that relative dating is a method of sequencing events in the order in which they happened.
1896-1898 Radioactivity discovered by: Henri Becquerel and Marie and Pierre Curie. Some elements, such as uranium (U) and thorium (Th), are unstable: They decay spontaneously. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Radioactive elements were incorporated into the Earth when the Solar System formed.
This method relies on the uptake of a naturally occurring radioactive isotope of carbon, carbon-14 by all living things.
Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
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Radiometric Dating the age of the Earth in two ways: Assume: Rate of decay (half life) of long-lived elements has not varied since the Earth was formed. The Principle of Uniformitarianism The physical, chemical and biological laws that operate today have also operated in the geologic past.