The radiometric dating of an igneous rock provides the relative age of the rock
What is radiometric dating ?
Radiometric dating, radio dating, or radioisotope dating, is a technique used to date materials such as rocks and carbon that are selectively incorporated when minute amounts of radioactive contaminants are formed. This method compares the abundance of a naturally occurring radioisotope in a material with the abundance of its decay products formed at a known constant decay rate. First published by Bertram Boltwood in 1907, the use of radiometric dating is now the primary source of information regarding the absolute age of rocks and other geological features, including the age of fossilized life forms and the age of the Earth itself. is the source. Used to date his one wide range of natural and man-made materials.
