## Relative dating of rock strata

### Relative dating of rock strata

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Relative dating is used to arrange geological events and the rocks they leave behind in a sequence the method of reading the order is called stratigraphy layers of rock are called strata relative dating does not provide actual numerical dates for the rocks.

Relative dating is the science of determining the relative order of past events ie the age of an object in comparison to another without necessarily determining their absolute age ie estimated age in geology rock or superficial deposits fossils and lithologies can be used to correlate one stratigraphic column with another.

Sequencing the rock layers will show students how paleontologists use fossils to give relative dates to rock strata once students begin to grasp relative dating they can extend their knowledge of geologic time by exploring radiometric dating and developing a timeline of earths history.

Sw science 10 unit 6 relative dating worksheet name _____ student _____ 622 relative dating the law of superposition in any undisturbed sequence of strata the oldest layer is at the bottom of the sequence and the youngest layer is at the top of the sequence of rock layers identify the relative dating law that would be used to.

Relative dating uses the principles or laws of stratigraphy to order sequences of rock strata relative dating not only determines which layers are older or younger but also gives insight into the paleoenvironments that formed the particular sequence of rock.

Relative dating cannot establish absolute age but it can establish whether one rock is older or younger than another relative dating requires an extensive knowledge of stratigraphic succession a fancy term for the way rock strata are built up and changed by geologic processes.

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