In order to understand the stratigraphy of sediment on the ocean floor,ships use a ___________ to extract a thin column of sediment for later laboratory analysis.
A)sounding drill
B)paleomagnetometer
C)piston-corer
D)varve corer
E)none of the above

Question

Quizplus · Accepted Answer

Ships use piston-corers to extract a thin column of sediment from the ocean floor for laboratory analysis. Sounding drills are used to measure water depths, paleomagnetometers are used to study Earth's magnetic field, and varve corers are used to study annual sediment layers in lakes, not the ocean floor.

In Order to Understand the Stratigraphy of Sediment on the Ocean