A vibracorer is a sediment sampling device first used on research vessels in the 1960's. The main element in a vibracore is the engine-powered concrete vibrator that creates an oscillation in an attached core barrel such as an aluminum irrigation pipe. The vibrations of the pipe liquifies the sediment beneath it allowing for the pipe to easily penetrate the ground with little added weight. Once the core sample is removed the barrel is split into two halves using a circular saw exposing the stratigraphy of the sample.

Vibracores can be used on land where the water table is near or at the ground surface. Thus, they are mostly used near water bodies such as lakes and rivers, wetland regions, and coasts. They are also commonly used for ocean research such as sand mining for beach restoration projects in depths up to 5000 meters

Relatively undisturbed core samples range from 10 to 25 feet in length on land and up to 40 feet in the ocean.

Log in or registerto write something here or to contact authors.