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It concentrates mainly on the placement of the strata as well as its chronological sequence.The principle of superposition is the core principle used in this method.The absolute age of these events need not inevitably be known.Grand Canyon is a gorge located in Northern Arizona, USA. While some of the layers are uplifted, most of the landform is left undisturbed by nature.
These hard tissues include the teeth and the bones.
Strata is the layered arrangement or soil or rocks which lie parallel, one above the other.
Each layer has a unique layer and consists of different sediments or material.
Biostratigraphy: Layers get deposited above one another, over time, and fossils get trapped in these layers.
When we find two fossils in the same strata of soil, we assume that both fossils were deposited during the same time period.
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However, this is mainly applicable to an undisturbed arrangement of rocks.