Chemical techniques of relative dating
The amount of fluorine in the fossils thus increases.
Most of the rock arrangements are disturbed by natural forces, such as wind and water, which result in unconformity in the sequence of rocks.Further on, this data is compared with the standard data to establish the age of the fossil.Archeology refers to the study of history of mankind by excavating ancient sites.Most of the nitrogen contained in these fossils gets depleted progressively.Ground water percolates into these rocks and deposits its component elements such as fluorine, uranium, etc.Geology refers to the study of the rocks and sediments that to a great extent compose the Earth.
Stratigraphy: This oldest relative dating technique in the branch of geology, as the name suggests, focuses mainly on the strata.
The principle of superposition states that the layer which lies at the bottom is older than the one on top of it.
In stratigraphic relative dating, the succession of layers can be seen as the timeline of its formation or deposition.
When they die, their remains get fossilized and are used by scientists to determine the era in which they lived.
These fossils are then used as standards to determine the age of other fossils. An example can be fossils of some species of monkeys found alongside fossils of human species.
It is composed of rocks and sediments deposited over millions of years. It is the evidence of Earth's history over such a long span of time.