The oceans' oldest sediments are found
A) adjacent to a rift valley.
B) on top of the basalt layer, far from spreading centers.
C) adjacent to a transform fault.
D) at the surface of sediment layers, far from spreading centers.
E) in hot spots.

Question

Quizplus · Accepted Answer

The oldest sediments in the oceans are found on top of the basalt layer, far from spreading centers. This is because sediment accumulates over time on the seafloor, and the farther away from spreading centers, the longer the sediment has had to accumulate. These sediments can be used to study the history of the Earth's oceans and climate.

The Oceans' Oldest Sediments Are Found