https://www.whoi.edu/what-we-do/explore/instruments/instruments-sensors-samplers/box-corer/
Box Corer - Woods Hole Oceanographic Institution
Feb 5, 2019 - This is one of the simplest and most commonly used sediment corers. The stainless steel sampling box can contain a surface sediment block as large as 50cm X
woods hole oceanographicbox corerinstitution