GENERAL GEOLOGY

Detailed explanation-1: -Radioactive elements decay Afterwards, they decay at a predictable rate. By measuring the quantity of unstable atoms left in a rock and comparing it to the quantity of stable daughter atoms in the rock, scientists can estimate the amount of time that has passed since that rock formed.

Detailed explanation-2: -Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50, 000 years.

Detailed explanation-3: -To determine the ages in years of Earth materials and the timing of geologic events such as exhumation and subduction, geologists utilize the process of radiometric decay. Geologists use these dates to further define the boundaries of the geologic periods shown on the geologic time scale.

Detailed explanation-4: -Absolute Age Dating (or, Numerical Dating) Radiometric dating works because radioactive elements decay at a known rate. They act like ticking clocks, and let geologists measure how much time has passed since those elements were sealed into a particular mineral in a rock (learn more here).