Using relative dating what can geologists determine dido dating marshal


17-Jun-2020 21:05

using relative dating what can geologists determine-49

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Good question: Geologist use these methods to determine the ages of rocks.

The absolute age of the rock and relative age of the rock.

Throughout the history of life, different organisms have appeared, flourished and become extinct.

Many of these organisms have left their remains as fossils in sedimentary rocks.

It is difficult to determine the absolute age of a sedimentary rock because sedimentary rocks are made up of diverse particles that are all different ages.

As a result radioactive dating can only determine the age of the particles, not the whole rock.

Different isotopic elements-such as uranium, rubidium, argon, and carbon-have varying (but constant) rates of radioactive decay.

This constancy provides a "radiometric clock," allowing scientists to analyze rock samples…

For a fossil to be a good index fossil, it needs to have lived during one specific time period, be easy to identify and have been abundant and found in many places. If you find ammonites in a rock in the South Island and also in a rock in the North Island, you can say that both rocks are Mesozoic.

there is many methods to determine how old is something.



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