Stratigraphy helps date rocks from "summary" of Principles of Geology, Volume 1 by Charles Lyell,Sir Charles Lyell
Stratigraphy, the study of rock layers and the sequence in which they were deposited, plays a crucial role in determining the relative ages of rocks. By examining the different layers of sedimentary rock, geologists can infer the relative order in which they were formed. This is based on the principle of superposition, which states that in undisturbed rock layers, the oldest layers are found at the bottom while the youngest are at the top. Furthermore, the concept of stratigraphy allows geologists to correlate rock layers from different locations by matching up similar sequences of layers. This can help establish a timeline of geological events and ...
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