"British Geological Survey VC1 6m vibrocorer"@en . . "SDN:L22::TOOL1171" . "British Geological Survey (BGS) VC1 Vibrocorer is an upgraded 6m system. It is used for collecting soft and unconsolidated sediment. Sediments are collected in a plastic liner tube within a core barrel driven by a one-tonne weight and vibrator motor (hence the name vibrocorer) mounted at the top of the rig. Guillotine closure below the core barrel during recovery of the equipment aids in core retention during operations. It is capable of collecting sediment in up to 6000m of water."@en . .