GEOLOGY

Detailed explanation-1: -Relative dating is the science of determining the relative order of past events (i.e., the age of an object in comparison to another), without necessarily determining their absolute age (i.e., estimated age).

Detailed explanation-2: -Archaeologists use two kinds of dating methods: relative dating and absolute dating. In relative dating, we determine which things are older or younger based on their relationships. For example, we know from geology that soil layers near the surface of the ground are usually younger than those deeper down.

Detailed explanation-3: -Relative Age Determination. Superposition of rock units is a very simple and straightforward method of relative age determination. The principle states that in a sequence of undeformed sedimentary rocks the oldest beds are at the bottom and the youngest ones are at the top.

Detailed explanation-4: -Absolute age is generally determined using a technique called radiometric dating, which uses radioactive isotopes of elements in the rock to estimate the age of the rock. Atoms are made of three particles: protons, electrons, and neutrons.

Detailed explanation-5: -The basic logic behind radiometric dating is that if you compare the presence of a radioactive isotope within a sample to its known abundance on Earth, and its known half-life (its rate of decay), you can calculate the age of the sample.