Concretions of iron and manganese oxides and hydrous oxidesóobjects commonly called manganese nodulesóare widely distributed not only on the deep-sea floor but also in shallow...
Seafloor magnetometer data were measured using a Marine Magnetics 1000 m SeaSpy towed magnetometer. Raw log and data files are presented by expedition.
Ferromanganese nodules in the deep-sea and in freshwater lakes usually accrete layers rich in manganese oxides alternating with layers rich in iron oxides. The mechanism...
One or two grams of dried sample were subjected to leaching by acid and the residue was separated by centrifuge.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine...
