Manganese nodules and micronodules from a series of deep-sea and shelf environments displaying a range of morphological features were selected for detailed examination by scanning electron microscopy (SEM). A summary of the morphological and petrographic characteristics of these nodules are presented. They are representative of areas in the Philippine Sea, the Tasman Sea and the Indian-Antarctic Ridge.

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.

Supplement to: Margolis, Stanley V; Glasby, Geoffrey P (1973): Micro-laminations in marine manganese nodules as revealed by scanning electron microscopy. In: Phase I Report - Inter-University Program of Research on Ferromanganese Deposits of the Ocean Floor. Seabed Assessment Program, IDOE, NSF, Washington D.C., USA, pdf 500 kB, 77-83