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Geologist uses radiometric dating

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There are many radiometric clocks and when applied to appropriate materials, the dating can be very accurate.As one example, the first minerals to crystallize (condense) from the hot cloud of gasses that surrounded the Sun as it first became a star have been dated to 4568 plus or minus 2 million years....!! Other events on earth can be dated equally well given the right minerals.Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.The majority of the time fossils are dated using relative dating techniques.The half-lives of several radioactive isotopes are known and are used often to figure out the age of newly found fossils.

geologist uses radiometric dating-85

Some radioactive parent isotopes decay almost instantaneously into their stable daughter isotopes; others take billions of years.

The discovery gave scientists a tool for dating rocks that contain radioactive elements.

Many elements have naturally occurring isotopes, varieties of the element that have different numbers of neutrons in the nucleus.

For example, the element Uranium exists as one of several isotopes, some of which are unstable.

When an unstable Uranium (U) isotope decays, it turns into an isotope of the element Lead (Pb).