Law Of Superposition Geology Definition

Law of superposition definition is a law in geology. Law of superposition definition a basic law of geochronology stating that in any undisturbed sequence of rocks deposited in layers the youngest layer is on top and the oldest on bottom each layer being younger than the one beneath it and older than the one above it.

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This is important to stratigraphic dating which assumes that the law.

Law of superposition geology definition. The layer on the top is the youngest layer while that at the bottom is the oldest. Definition examples and laws nicolas steno a danish scientist was the first to propose the law of superposition. Later it was first used by william strata smith who generated the first geologic map of uk.

Law of superposition a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence on occasion however deformation may have caused the rocks of the crust to tilt perhaps to the point of overturning them. For instance if in a given sample a layer of limestone is present on top of a layer of shale stone then the limestone layer is the younger of the two. The law of superposition is an axiom that forms one of the bases of the sciences of geology archaeology and other fields dealing with geological stratigraphy it is a form of relative dating in its plainest form it states that in undeformed stratigraphic sequences the oldest strata will be at the bottom of the sequence.

Definition of the law of superposition in an undisturbed collection of sediment or rock. Where there has been no subsequent disturbance sedimentary strata were deposited in ascending order with younger beds successively overlying older beds.

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