When we see sedimentary rock units that are twisted or tilted,we know that some force must have disturbed the strata after they were deposited.The principle upon which we base this inference is the principle of _____.
A)stratigraphic superposition
B)cross-cutting relationships
C)original horizontality.
D)stratigraphic correlation

Question

Quizplus · Accepted Answer

The principle of original horizontality states that sedimentary layers are deposited horizontally, and any tilting or twisting of the rock layers must have occurred after their deposition.

When We See Sedimentary Rock Units That Are Twisted or Tilted,we