What is relative dating

ANSWER: Relative dating is used to determine the relative ages of geologic strata, artifacts, historical events, etc.This technique does not give specific ages to items.Ice cores showed the age of a military plane buried in the artic as thousands of years old.Similarly, dendrochronology measures the tree rings in trees and assumes they represent years.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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With the sinking of the land surface, sediments were deposited on the ocean floor.

Seriation uses the assumption that once a tool was developed, its use would become more widespread.

Stratigraphy uses the assumption that higher layers or strata were laid down after lower layers.

The ten strata systems that compose the “standard geologic column” are the familiar Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, and Tertiary periods.

Although no absolute methods were available to establish actual dates, Lyell needed to assign very old dates to the strata to make them consistent with the long eons of time that would be necessary to meet the new uniformitarianism theory developed by James Hutton and himself.

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