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A radioactive rock is one which contains traces of radioactive isotopes. These isotopes release radiation in its various forms.
Any rock can be radioactive, but in particular igneous rocks tend to have radioactive properties. This is because they may have radon gas trapped in their crystals, which, under pressure, is released (this is why radon gas is used as an indicator of an upcoming earthquake). Radon gas is radioactive, and this causes the rock to be radioactive also.
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What must be true for a fossil organism to be useful as a index fossil?
The absolute age of the index fossil was determine by radioactive dating or another absolute method
How old is a fossil that has a radioactive material with a half life of 200 years if there is 25 percent of the original radioactive material left?
400 yrs
What type of rock does radioactive dating work with?
Rocks in general are not dated, but a fossil would be.
Radioactive dating works best with what type of rocks?
Rocks in general are not dated, but a fossil would be.
How do you see a sedimentary rocks age by looking at the fossils?
Find out what era the Fossil was from and then you can put a relative date on the sedimentary rock, assuming that the fossil was preserved in the sedimentary rock when it had died. It would not be the actual age because you need to date the radioactive isotopes for that.
Are fossil fuels radioactive?
Some are more radioactive than others.
Pollutant not created by fossil fuels?
One example of a deadly pollutant not created by fossil fuels is highly toxic radioactive waste, which is the bi-product of using radioactive isotopes.
What is another way to age a fossil?
By radioactive decay process.
What must be true for a fossil organism to be useful as a index fossil?
The absolute age of the index fossil was determine by radioactive dating or another absolute method
What plants have radioactive waste?
All plants have radioactive waste, especially fossil fuel plants.
How old is a fossil that has a radioactive material with a half life of 200 years if there is 25 percent of the original radioactive material left?
400 yrs
How old is a fossil that has one sixteenth of the radioactive carbon found in living organisms according to carbon dating?
This fossil has 23 000 years.
What type of rock does radioactive dating work with?
Rocks in general are not dated, but a fossil would be.
What type of rock does radioactive rock work with?
Rocks in general are not dated, but a fossil would be.
Radioactive dating works best with what type of rocks?
Rocks in general are not dated, but a fossil would be.
What type of rock does radioactive dating work best with?
Rocks in general are not dated, but a fossil would be.
The combustion of fossil fuels causes the acidity of rain to increase because?
When there is a combustion of fossil fuels acid rain occurs from sulfuric, carbonic, and nitric acid. Fossil fuels may contain radioactive materials.
