In one region of undisturbed sedimentary rocks, the Feingold stratum is below the Tucos stratum and is above the Ruff stratum.Based on the principles of stratigraphy, the _______ stratum is oldest, and the _______ is youngest.

Question

Quizplus · Accepted Answer

The principle of superposition in stratigraphy states that in a sequence of undisturbed sedimentary layers, the oldest layer is at the bottom and the youngest is at the top. Therefore, since the Ruff stratum is below the Feingold, and the Feingold is below the Tucos, the Ruff stratum is the oldest and the Tucos stratum is the youngest.

In One Region of Undisturbed Sedimentary Rocks, the Feingold Stratum