Carbon dating the age of the earth sex dating in brecksville ohio
Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old.
Fossils, however, form in sedimentary rock -- sediment quickly covers a dinosaur's body, and the sediment and the bones gradually turn into rock.At an archaeological dig, a piece of wooden tool is unearthed and the archaeologist finds it to be 5,000 years old.A child mummy is found high in the Andes and the archaeologist says the child lived more than 2,000 years ago.The extreme temperatures of the magma would just destroy the bones.So to determine the age of sedimentary rock layers, researchers first have to find neighboring layers of Earth that include igneous rock, such as volcanic ash.
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These layers are like bookends -- they give a beginning and an end to the period of time when the sedimentary rock formed.