Law of superposition and relative dating
22-Sep-2020 09:11
Therefore, if the fossil is located in a specific strata that is a certain depth beneath the ground it is conclusive as to about how old the fossil is.One of the first ways to calculate the age of the Earth began in 1896 with radioactivity.Radiometric dating is far more specific in formation analysis.The law of superposition states that layers of undeformed (moved or changed) sedimentary rock are deposited so that each layer is younger than the layers below it and older than the layers above it.
The law of superposition states that in layers of sedimentary rocks or lava flow, the oldest layer is on the bottom and the youngest is on the top. Relative dating techniques are typically based around the law of superposition which in an archaeological context broadly states that objects are buried by sediment in relation to their age whereby the older an object, the deeper it is buried.
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Radiometric dating can give us the absolute age of the rock.
Trace fossils and the Law of Superposition can only provide the relative age of the rock.
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