definition of fossil definition of relative dating

By studying the chemical composition of a rock and knowing the half life of the radioisotopes present we can determine the age of the rock in years. Fossils appear to have directly contributed to the mythology of many civilizations, including the ancient Greeks. However, this is difficult for some time periods, because of the problems involved in matching rocks of the same age across continents. Dinosaur footprints from Torotoro National Park in Bolivia. Is this correct? Radiocarbon dates are obtained from such things as bones, teeth, charcoal, fossilized wood, and shells. Note that with the exception of 14C, all techniques can only be used to date igneous rocks.

DEFINITION OF FOSSIL DEFINITION OF RELATIVE DATING / janiceclark.net

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