scientists have identified four sedimentary rock layers from an archaeological dig as shown below. which is…
scientists have identified four sedimentary rock layers from an archaeological dig as shown below. which is most likely the oldest sedimentary rock layer? a. layer r b. layer s c. layer t d. layer u
Answer
Brief Explanations:
In sedimentary rock - formation, the principle of superposition states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top. Layer U is the bottom - most layer among the four shown.
Answer:
D. Layer U