Relative dating principles include dating ugly man

With the sinking of the land surface, sediments were deposited on the ocean floor.

Such recurring events as mountain building and sea encroachment and believed to be recorded in rock layers that comprise units of geologic time.

The principles of relative dating for continuous stratigraphic sequences: (as put forth by scientists such as Nicolas Steno): Ice cores are obtained by drilling core samples of ice in glaciated regions, such as near the poles.

Visible light and dark rings can be found in such cores that are then analyzed to determine the age of the ice.

Stratigraphy is a branch of geology that studies rock strata with an emphasis on distribution, deposition, age and evidence of past life.

Using these key or index fossils as markers, geologists began to identify a particular layer of rock wherever it was exposed.

Because fossils are believed to record the slow but progressive development of life, geologist use them to identify the relative age of rocks throughout the world.

It only sequences the age of things or determines if something is older or younger than other things.

Some types of relative dating techniques include climate chronology, dendrochronology, ice core sampling, stratigraphy, and seriation.

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