These are three ways to find out how old a rock is. There's radiocarbon dating, potassium-argon dating and uranium-lead dating. Does this help?
It's called radiometric dating.
Radiometric dating is a technique that detects the presence and abundance of radioactive isotopes and is used to give approximate ages of materials. One common form is carbon dating.
amount if living organism that is expected to radioactive isotope.
Each radioactive isotope has been decaying at a constant rate since the formation of the rocks in which it occurs
Radioactive decay may be used in carbon dating, testing for the amounts of a radioactive carbon isotope (C14) in the remains of some organism. C14 obviously only works on organic material which was once alive, such as wood or bone. Because C14 has a very short half life, less than 6000 years, it does not work on material much over 60,000 years (about ten half lives). Potassium/Argon is another useful set of isotopes that can yield the ages of rocks and inorganic matter far older--many millions of years old.
The four types of radiometric dating are: Potassium, Uranium, Rubidium, and Carbon I hope thats the answer you were looking for:)
FaultIntrusionFoldingtilting
CATS
The four types of radiometric dating are: Potassium, Uranium, Rubidium, and Carbon I hope thats the answer you were looking for:)
Radio metric dating.
Radiometric dating is the principal source of information about the absolute age of rocks and other geological features, including the age of the Earth itself, and can be used to date a wide range of natural and man-made materials.
Carbon 14 dating is the best known example of radiometric dating, but there are many others. Another example of radiometric dating is the dating of the age of geological formations on earth. The oldest known rocks on the earth that have been analyzed, have been dated back some 4.404 billion years.
Carbon 14 dating is one tpye of radiometric dating. It is used for destermiing the age of samples of one-living entities. See related links for more information.
Sedimentary Rocks
by relative dating or radiometric dating
Radiometric measurement is based on the decay of certain elements, the rate of which is a known scientific fact.
According to radiometric dating the Earth is approximately 4.54 billion years old. This age is based on dating of meteorite material.