English Seabed mining Cited by user MS2424 on 12 Dec 2023 Seabed mining, also known as Seafloor mining is the recovery of minerals from the seabed by techniques of underwater mining.
English Manganese nodule Cited by user Charlotte.Littgen on 12 Dec 2023 Polymetallic nodules, also called manganese nodules, are mineral concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core.