![]() A scientific law that states that in undisturbed sedimentary rock layers, older layers of rock lie beneath younger rock layers. What are the principles of the rock layer? ![]() ![]() Nice work! You just studied 14 terms! Now up your study game with Learn mode. Method of determining the age of a fossil by comparing its placement with that of fossils in other layers of rock. How are older layers of rock related to younger layers?Ī scientific law that states that in undisturbed sedimentary rock layers, older layers of rock lie beneath younger rock layers. The law of superposition is the principle that states that younger rocks lie above older rocks if the layers have not been disturbed. In which situation will older rocks lie above the younger rock layers? Principle of Superposition:In an otherwise undisturbed sequence of sedimentary strata, or rock layers, the layers on the bottom are the oldest and layers above them are younger. Where are the older layers of rock most commonly found in an undisturbed rock profile? Therefore, the youngest layers are found at the top, and the oldest layers are found at the bottom of the sequence. Sedimentary rocks are deposited one on top of another. Each higher layer is younger than the rocks below it. Which layer is the oldest in undisturbed rock layers?Īccording to the Law of Superposition, in undisturbed, horizontal, sedimentary rock layers, the oldest layer is at the bottom. 4 How is the age of sedimentary rock determined?.3 How are older layers of rock related to younger layers?.2 Where are the older layers of rock most commonly found in an undisturbed rock profile?.1 Which layer is the oldest in undisturbed rock layers?. ![]()
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