Josiane Dalcourt holds the airlift tube upright as the sample from the sea floor is collected. Material is pushed up the tube with air pressure and into the bucket at the top. The larger pieces stay in the bucket while the sediment is pushed out of the screened lid.
 Josiane Dalcourt
Image courtesy of Amy Gusick, Sea of Cortez 2110 Expedition. Download image (jpg, 52 KB).

Josiane Dalcourt holds the airlift tube upright as the sample from the sea floor is collected. Material is pushed up the tube with air pressure and into the bucket at the top. The larger pieces stay in the bucket while the sediment is pushed out of the screened lid.