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...
Seafloor magnetometer data were measured using a Marine Magnetics 1000 m SeaSpy towed magnetometer. Raw log and data files are presented by expedition.
Microscopic images of discrete samples were acquired using stereo and upright light microscopes and captured on digital cameras. Image files were uploaded along with a brief description and a record o
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...
Elemental concentration in interstitial water samples was measured by inductively coupled plasma - atomic emission spectroscopy (ICP-AES). Data are presented by element-wavelength pair (e.g., more tha