is zac efrom dating - Principle of radioisotopic dating
by | 04-Jan-2020 08:26
The main point is that the ages of rock formations are rarely based on a single, isolated age measurement.
For example, a method based on a parent isotope with a very long half-life, such as C method can only be used to determine the ages of certain types of young organic material and is useless on old granites.
Some methods work only on closed systems, whereas others work on open systems.
he question of the ages of the Earth and its rock formations and features has fascinated philosophers, theologians, and scientists for centuries, primarily because the answers put our lives in temporal perspective.
Until the 18th century, this question was principally in the hands of theologians, who based their calculations on biblical chronology.
Radiometric dating is based on the decay of long-lived radioactive isotopes that occur naturally in rocks and minerals.